712157 has 2 divisors, whose sum is σ = 712158. Its totient is φ = 712156.

The previous prime is 712133. The next prime is 712169. The reversal of 712157 is 751217.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 568516 + 143641 = 754^2 + 379^2 .

It is an emirp because it is prime and its reverse (751217) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 712157 - 2⁶ = 712093 is a prime.

It is a Chen prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (712357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 356078 + 356079.

It is an arithmetic number, because the mean of its divisors is an integer number (356079).

2⁷¹²¹⁵⁷ is an apocalyptic number.

It is an amenable number.

712157 is a deficient number, since it is larger than the sum of its proper divisors (1).

712157 is an equidigital number, since it uses as much as digits as its factorization.

712157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 490, while the sum is 23.

The square root of 712157 is about 843.8939506834. The cubic root of 712157 is about 89.3014647718.

Subtracting 712157 from its reverse (751217), we obtain a triangular number (39060 = T₂₇₉).

The spelling of 712157 in words is "seven hundred twelve thousand, one hundred fifty-seven".