1152520538 has 8 divisors (see below), whose sum is σ = 1861763988. Its totient is φ = 531932544.

The previous prime is 1152520507. The next prime is 1152520543. The reversal of 1152520538 is 8350252511.

It can be written as a sum of positive squares in 2 ways, for example, as 1145619409 + 6901129 = 33847^2 + 2627^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22163831 + ... + 22163882.

Almost surely, 2^1152520538 is an apocalyptic number.

1152520538 is a deficient number, since it is larger than the sum of its proper divisors (709243450).

1152520538 is a wasteful number, since it uses less digits than its factorization.

1152520538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44327728.

The product of its (nonzero) digits is 12000, while the sum is 32.

The square root of 1152520538 is about 33948.7928798654. The cubic root of 1152520538 is about 1048.4544269037.

The spelling of 1152520538 in words is "one billion, one hundred fifty-two million, five hundred twenty thousand, five hundred thirty-eight".