152123987 has 4 divisors (see below), whose sum is σ = 152308320. Its totient is φ = 151939656.

The previous prime is 152123971. The next prime is 152123989. The reversal of 152123987 is 789321251.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 152123987 - 2⁴ = 152123971 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 152123987.

It is not an unprimeable number, because it can be changed into a prime (152123989) 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, 90923 + ... + 92580.

It is an arithmetic number, because the mean of its divisors is an integer number (38077080).

Almost surely, 2^152123987 is an apocalyptic number.

152123987 is a deficient number, since it is larger than the sum of its proper divisors (184333).

152123987 is an equidigital number, since it uses as much as digits as its factorization.

152123987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184332.

The product of its digits is 30240, while the sum is 38.

The square root of 152123987 is about 12333.8553177828. The cubic root of 152123987 is about 533.8253986910.

The spelling of 152123987 in words is "one hundred fifty-two million, one hundred twenty-three thousand, nine hundred eighty-seven".