156764213 has 2 divisors, whose sum is σ = 156764214. Its totient is φ = 156764212.

The previous prime is 156764207. The next prime is 156764219. The reversal of 156764213 is 312467651.

It is a balanced prime because it is at equal distance from previous prime (156764207) and next prime (156764219).

It can be written as a sum of positive squares in only one way, i.e., 141538609 + 15225604 = 11897^2 + 3902^2 .

It is an emirp because it is prime and its reverse (312467651) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 156764213 - 2⁶ = 156764149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (156764219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78382106 + 78382107.

It is an arithmetic number, because the mean of its divisors is an integer number (78382107).

Almost surely, 2^156764213 is an apocalyptic number.

It is an amenable number.

156764213 is a deficient number, since it is larger than the sum of its proper divisors (1).

156764213 is an equidigital number, since it uses as much as digits as its factorization.

156764213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 35.

The square root of 156764213 is about 12520.5516252280. The cubic root of 156764213 is about 539.1988726452.

The spelling of 156764213 in words is "one hundred fifty-six million, seven hundred sixty-four thousand, two hundred thirteen".