253719031 has 2 divisors, whose sum is σ = 253719032. Its totient is φ = 253719030.

The previous prime is 253719023. The next prime is 253719047. The reversal of 253719031 is 130917352.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 253719031 - 2³ = 253719023 is a prime.

It is a super-2 number, since 2×253719031² = 128746693383157922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 253718984 and 253719002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253719001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126859515 + 126859516.

It is an arithmetic number, because the mean of its divisors is an integer number (126859516).

Almost surely, 2^253719031 is an apocalyptic number.

253719031 is a deficient number, since it is larger than the sum of its proper divisors (1).

253719031 is an equidigital number, since it uses as much as digits as its factorization.

253719031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5670, while the sum is 31.

The square root of 253719031 is about 15928.5602299768. The cubic root of 253719031 is about 633.0689520394.

The spelling of 253719031 in words is "two hundred fifty-three million, seven hundred nineteen thousand, thirty-one".