1525354164 has 36 divisors (see below), whose sum is σ = 3883913124. Its totient is φ = 504738432.

The previous prime is 1525354157. The next prime is 1525354183. The reversal of 1525354164 is 4614535251.

1525354164 is a `hidden beast` number, since 1 + 5 + 2 + 53 + 541 + 64 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 517926564 + 1007427600 = 22758^2 + 31740^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 149707 + ... + 159570.

Almost surely, 2^1525354164 is an apocalyptic number.

It is an amenable number.

1525354164 is an abundant number, since it is smaller than the sum of its proper divisors (2358558960).

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

1525354164 is a wasteful number, since it uses less digits than its factorization.

1525354164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309424 (or 309419 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

The square root of 1525354164 is about 39055.7827216406. The cubic root of 1525354164 is about 1151.1278573285.

The spelling of 1525354164 in words is "one billion, five hundred twenty-five million, three hundred fifty-four thousand, one hundred sixty-four".