152415481 has 4 divisors (see below), whose sum is σ = 152466832. Its totient is φ = 152364132.

The previous prime is 152415451. The next prime is 152415541. The reversal of 152415481 is 184514251.

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, and also an emirpimes, since its reverse is a distinct semiprime: 184514251 = 1801 ⋅102451.

It is a cyclic number.

It is not a de Polignac number, because 152415481 - 2⁵ = 152415449 is a prime.

It is a super-2 number, since 2×152415481² = 46460957696922722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (152415451) 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, 20931 + ... + 27256.

It is an arithmetic number, because the mean of its divisors is an integer number (38116708).

Almost surely, 2^152415481 is an apocalyptic number.

It is an amenable number.

152415481 is a deficient number, since it is larger than the sum of its proper divisors (51351).

152415481 is an equidigital number, since it uses as much as digits as its factorization.

152415481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51350.

The product of its digits is 6400, while the sum is 31.

The square root of 152415481 is about 12345.6664866665. Note that the first 3 decimals coincide. The cubic root of 152415481 is about 534.1661462181.

The spelling of 152415481 in words is "one hundred fifty-two million, four hundred fifteen thousand, four hundred eighty-one".