152531461 has 4 divisors (see below), whose sum is σ = 155116800. Its totient is φ = 149946124.

The previous prime is 152531459. The next prime is 152531471. The reversal of 152531461 is 164135251.

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 a cyclic number.

It is not a de Polignac number, because 152531461 - 2¹ = 152531459 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152531441) 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, 1292581 + ... + 1292698.

It is an arithmetic number, because the mean of its divisors is an integer number (38779200).

Almost surely, 2^152531461 is an apocalyptic number.

It is an amenable number.

152531461 is a deficient number, since it is larger than the sum of its proper divisors (2585339).

152531461 is an equidigital number, since it uses as much as digits as its factorization.

152531461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2585338.

The product of its digits is 3600, while the sum is 28.

The square root of 152531461 is about 12350.3627881937. The cubic root of 152531461 is about 534.3016024541.

The spelling of 152531461 in words is "one hundred fifty-two million, five hundred thirty-one thousand, four hundred sixty-one".