1534745520 has 960 divisors, whose sum is σ = 7130972160. Its totient is φ = 286156800.

The previous prime is 1534745519. The next prime is 1534745549. The reversal of 1534745520 is 255474351.

1534745520 is a `hidden beast` number, since 1 + 5 + 34 + 74 + 552 + 0 = 666.

It is a super-2 number, since 2×1534745520² = 4710887622320140800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 32654137 + ... + 32654183.

It is an arithmetic number, because the mean of its divisors is an integer number (7428096).

Almost surely, 2^1534745520 is an apocalyptic number.

1534745520 is a gapful number since it is divisible by the number (10) 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 1534745520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3565486080).

1534745520 is an abundant number, since it is smaller than the sum of its proper divisors (5596226640).

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

1534745520 is a wasteful number, since it uses less digits than its factorization.

1534745520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134 (or 125 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 36.

The square root of 1534745520 is about 39175.8282618249. The cubic root of 1534745520 is about 1153.4854607563.

The spelling of 1534745520 in words is "one billion, five hundred thirty-four million, seven hundred forty-five thousand, five hundred twenty".