125723537 has 2 divisors, whose sum is σ = 125723538. Its totient is φ = 125723536.

The previous prime is 125723527. The next prime is 125723581. The reversal of 125723537 is 735327521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64899136 + 60824401 = 8056^2 + 7799^2 .

It is a cyclic number.

It is not a de Polignac number, because 125723537 - 2⁸ = 125723281 is a prime.

It is a Chen prime.

It is equal to p_7148924 and since 125723537 and 7148924 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 125723497 and 125723506.

It is not a weakly prime, because it can be changed into another prime (125723527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62861768 + 62861769.

It is an arithmetic number, because the mean of its divisors is an integer number (62861769).

Almost surely, 2^125723537 is an apocalyptic number.

It is an amenable number.

125723537 is a deficient number, since it is larger than the sum of its proper divisors (1).

125723537 is an equidigital number, since it uses as much as digits as its factorization.

125723537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 44100, while the sum is 35.

The square root of 125723537 is about 11212.6507570690. The cubic root of 125723537 is about 500.9628606087.

The spelling of 125723537 in words is "one hundred twenty-five million, seven hundred twenty-three thousand, five hundred thirty-seven".