152146681 has 4 divisors (see below), whose sum is σ = 154289664. Its totient is φ = 150003700.

The previous prime is 152146639. The next prime is 152146691. The reversal of 152146681 is 186641251.

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 152146681 - 2¹¹ = 152144633 is a prime.

It is a super-2 number, since 2×152146681² = 46297225078631522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (152146601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1071385 + ... + 1071526.

It is an arithmetic number, because the mean of its divisors is an integer number (38572416).

Almost surely, 2^152146681 is an apocalyptic number.

It is an amenable number.

152146681 is a deficient number, since it is larger than the sum of its proper divisors (2142983).

152146681 is an equidigital number, since it uses as much as digits as its factorization.

152146681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2142982.

The product of its digits is 11520, while the sum is 34.

The square root of 152146681 is about 12334.7752715645. The cubic root of 152146681 is about 533.8519428967.

The spelling of 152146681 in words is "one hundred fifty-two million, one hundred forty-six thousand, six hundred eighty-one".