152352491 has 2 divisors, whose sum is σ = 152352492. Its totient is φ = 152352490.

The previous prime is 152352467. The next prime is 152352503. The reversal of 152352491 is 194253251.

It is a strong prime.

It is an emirp because it is prime and its reverse (194253251) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-152352491 is a prime.

It is a super-2 number, since 2×152352491² = 46422563027810162, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (152352191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76176245 + 76176246.

It is an arithmetic number, because the mean of its divisors is an integer number (76176246).

Almost surely, 2^152352491 is an apocalyptic number.

152352491 is a deficient number, since it is larger than the sum of its proper divisors (1).

152352491 is an equidigital number, since it uses as much as digits as its factorization.

152352491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10800, while the sum is 32.

The square root of 152352491 is about 12343.1151254454. The cubic root of 152352491 is about 534.0925496656.

The spelling of 152352491 in words is "one hundred fifty-two million, three hundred fifty-two thousand, four hundred ninety-one".