13725737 has 2 divisors, whose sum is σ = 13725738. Its totient is φ = 13725736.

The previous prime is 13725727. The next prime is 13725763. The reversal of 13725737 is 73752731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12524521 + 1201216 = 3539^2 + 1096^2 .

It is a cyclic number.

It is not a de Polignac number, because 13725737 - 2⁴ = 13725721 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 13725697 and 13725706.

It is not a weakly prime, because it can be changed into another prime (13725727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6862868 + 6862869.

It is an arithmetic number, because the mean of its divisors is an integer number (6862869).

Almost surely, 2^13725737 is an apocalyptic number.

It is an amenable number.

13725737 is a deficient number, since it is larger than the sum of its proper divisors (1).

13725737 is an equidigital number, since it uses as much as digits as its factorization.

13725737 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30870, while the sum is 35.

The square root of 13725737 is about 3704.8261767592. The cubic root of 13725737 is about 239.4299956809.

The spelling of 13725737 in words is "thirteen million, seven hundred twenty-five thousand, seven hundred thirty-seven".