152756481 has 4 divisors (see below), whose sum is σ = 203675312. Its totient is φ = 101837652.

The previous prime is 152756459. The next prime is 152756491. The reversal of 152756481 is 184657251.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 152756481 - 2⁷ = 152756353 is a prime.

It is a super-2 number, since 2×152756481² = 46669084975006722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (152756411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25459411 + ... + 25459416.

It is an arithmetic number, because the mean of its divisors is an integer number (50918828).

Almost surely, 2^152756481 is an apocalyptic number.

It is an amenable number.

152756481 is a deficient number, since it is larger than the sum of its proper divisors (50918831).

152756481 is an equidigital number, since it uses as much as digits as its factorization.

152756481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50918830.

The product of its digits is 67200, while the sum is 39.

The square root of 152756481 is about 12359.4692847225. The cubic root of 152756481 is about 534.5642137920.

The spelling of 152756481 in words is "one hundred fifty-two million, seven hundred fifty-six thousand, four hundred eighty-one".