1551197472 has 192 divisors, whose sum is σ = 4722883200. Its totient is φ = 441584640.

The previous prime is 1551197423. The next prime is 1551197489. The reversal of 1551197472 is 2747911551.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41924238 + ... + 41924274.

It is an arithmetic number, because the mean of its divisors is an integer number (24598350).

Almost surely, 2^1551197472 is an apocalyptic number.

1551197472 is a gapful number since it is divisible by the number (12) 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 1551197472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2361441600).

1551197472 is an abundant number, since it is smaller than the sum of its proper divisors (3171685728).

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

1551197472 is an equidigital number, since it uses as much as digits as its factorization.

1551197472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164 (or 82 counting only the distinct ones).

The product of its digits is 88200, while the sum is 42.

The square root of 1551197472 is about 39385.2443435356. The cubic root of 1551197472 is about 1157.5924780298.

The spelling of 1551197472 in words is "one billion, five hundred fifty-one million, one hundred ninety-seven thousand, four hundred seventy-two".