727125431 has 2 divisors, whose sum is σ = 727125432. Its totient is φ = 727125430.

The previous prime is 727125403. The next prime is 727125433. The reversal of 727125431 is 134521727.

It is a strong prime.

It is an emirp because it is prime and its reverse (134521727) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 727125431 - 2²² = 722931127 is a prime.

It is a super-2 number, since 2×727125431² = 1057422784813871522, which contains 22 as substring.

Together with 727125433, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (727125433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 363562715 + 363562716.

It is an arithmetic number, because the mean of its divisors is an integer number (363562716).

Almost surely, 2^727125431 is an apocalyptic number.

727125431 is a deficient number, since it is larger than the sum of its proper divisors (1).

727125431 is an equidigital number, since it uses as much as digits as its factorization.

727125431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11760, while the sum is 32.

The square root of 727125431 is about 26965.2634142520. The cubic root of 727125431 is about 899.2279102590.

The spelling of 727125431 in words is "seven hundred twenty-seven million, one hundred twenty-five thousand, four hundred thirty-one".