152335991 has 2 divisors, whose sum is σ = 152335992. Its totient is φ = 152335990.

The previous prime is 152335949. The next prime is 152335999. The reversal of 152335991 is 199533251.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (199533251) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 152335991 - 2²² = 148141687 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (152335999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76167995 + 76167996.

It is an arithmetic number, because the mean of its divisors is an integer number (76167996).

Almost surely, 2^152335991 is an apocalyptic number.

152335991 is a deficient number, since it is larger than the sum of its proper divisors (1).

152335991 is an equidigital number, since it uses as much as digits as its factorization.

152335991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36450, while the sum is 38.

The square root of 152335991 is about 12342.4467185400. The cubic root of 152335991 is about 534.0732679653.

The spelling of 152335991 in words is "one hundred fifty-two million, three hundred thirty-five thousand, nine hundred ninety-one".