156464249 has 2 divisors, whose sum is σ = 156464250. Its totient is φ = 156464248.

The previous prime is 156464219. The next prime is 156464261. The reversal of 156464249 is 942464651.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 122323600 + 34140649 = 11060^2 + 5843^2 .

It is a cyclic number.

It is not a de Polignac number, because 156464249 - 2¹⁶ = 156398713 is a prime.

It is a super-2 number, since 2×156464249² = 48962122430268002, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (156464219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78232124 + 78232125.

It is an arithmetic number, because the mean of its divisors is an integer number (78232125).

Almost surely, 2^156464249 is an apocalyptic number.

It is an amenable number.

156464249 is a deficient number, since it is larger than the sum of its proper divisors (1).

156464249 is an equidigital number, since it uses as much as digits as its factorization.

156464249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 207360, while the sum is 41.

The square root of 156464249 is about 12508.5670242438. The cubic root of 156464249 is about 538.8547389955.

The spelling of 156464249 in words is "one hundred fifty-six million, four hundred sixty-four thousand, two hundred forty-nine".