152249407 has 2 divisors, whose sum is σ = 152249408. Its totient is φ = 152249406.

The previous prime is 152249381. The next prime is 152249431. The reversal of 152249407 is 704942251.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-152249407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (152249437) 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 as a sum of consecutive naturals, namely, 76124703 + 76124704.

It is an arithmetic number, because the mean of its divisors is an integer number (76124704).

Almost surely, 2^152249407 is an apocalyptic number.

152249407 is a deficient number, since it is larger than the sum of its proper divisors (1).

152249407 is an equidigital number, since it uses as much as digits as its factorization.

152249407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 152249407 is about 12338.9386496570. The cubic root of 152249407 is about 533.9720641214.

It can be divided in two parts, 15 and 2249407, that added together give a palindrome (2249422).

The spelling of 152249407 in words is "one hundred fifty-two million, two hundred forty-nine thousand, four hundred seven".