13725031 has 2 divisors, whose sum is σ = 13725032. Its totient is φ = 13725030.

The previous prime is 13725013. The next prime is 13725077. The reversal of 13725031 is 13052731.

Together with previous prime (13725013) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13725031 - 2⁷ = 13724903 is a prime.

It is a super-2 number, since 2×13725031² = 376752951901922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13724993 and 13725011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13725431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6862515 + 6862516.

It is an arithmetic number, because the mean of its divisors is an integer number (6862516).

Almost surely, 2^13725031 is an apocalyptic number.

13725031 is a deficient number, since it is larger than the sum of its proper divisors (1).

13725031 is an equidigital number, since it uses as much as digits as its factorization.

13725031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 630, while the sum is 22.

The square root of 13725031 is about 3704.7308944106. The cubic root of 13725031 is about 239.4258904860.

Adding to 13725031 its reverse (13052731), we get a palindrome (26777762).

The spelling of 13725031 in words is "thirteen million, seven hundred twenty-five thousand, thirty-one".