1497149568 has 160 divisors (see below), whose sum is σ = 4484218860. Its totient is φ = 495839232.

The previous prime is 1497149567. The next prime is 1497149569. The reversal of 1497149568 is 8659417941.

1497149568 is a `hidden beast` number, since 1 + 4 + 9 + 71 + 4 + 9 + 568 = 666.

It is an interprime number because it is at equal distance from previous prime (1497149567) and next prime (1497149569).

It can be written as a sum of positive squares in 2 ways, for example, as 962985024 + 534164544 = 31032^2 + 23112^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (1497149561) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2042130 + ... + 2042862.

Almost surely, 2^1497149568 is an apocalyptic number.

1497149568 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1497149568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2242109430).

1497149568 is an abundant number, since it is smaller than the sum of its proper divisors (2987069292).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1497149568 is an equidigital number, since it uses as much as digits as its factorization.

1497149568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 956 (or 935 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 54.

The square root of 1497149568 is about 38693.0170444229. The cubic root of 1497149568 is about 1143.9886871915.

The spelling of 1497149568 in words is "one billion, four hundred ninety-seven million, one hundred forty-nine thousand, five hundred sixty-eight".