152891123 has 36 divisors (see below), whose sum is σ = 198137016. Its totient is φ = 117532800.

The previous prime is 152891113. The next prime is 152891129. The reversal of 152891123 is 321198251.

It is a happy number.

It is not a de Polignac number, because 152891123 - 2¹⁶ = 152825587 is a prime.

It is a super-2 number, since 2×152891123² = 46751390984402258, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 152891123.

It is not an unprimeable number, because it can be changed into a prime (152891129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 634283 + ... + 634523.

It is an arithmetic number, because the mean of its divisors is an integer number (5503806).

Almost surely, 2^152891123 is an apocalyptic number.

152891123 is a deficient number, since it is larger than the sum of its proper divisors (45245893).

152891123 is a wasteful number, since it uses less digits than its factorization.

152891123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384 (or 366 counting only the distinct ones).

The product of its digits is 4320, while the sum is 32.

The square root of 152891123 is about 12364.9150017297. The cubic root of 152891123 is about 534.7212254796.

The spelling of 152891123 in words is "one hundred fifty-two million, eight hundred ninety-one thousand, one hundred twenty-three".