125743957 has 4 divisors (see below), whose sum is σ = 132362080. Its totient is φ = 119125836.

The previous prime is 125743903. The next prime is 125743979. The reversal of 125743957 is 759347521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 125743957 - 2¹⁹ = 125219669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125743357) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3309033 + ... + 3309070.

It is an arithmetic number, because the mean of its divisors is an integer number (33090520).

Almost surely, 2^125743957 is an apocalyptic number.

It is an amenable number.

125743957 is a deficient number, since it is larger than the sum of its proper divisors (6618123).

125743957 is an equidigital number, since it uses as much as digits as its factorization.

125743957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6618122.

The product of its digits is 264600, while the sum is 43.

The square root of 125743957 is about 11213.5612987133. The cubic root of 125743957 is about 500.9899812473.

The spelling of 125743957 in words is "one hundred twenty-five million, seven hundred forty-three thousand, nine hundred fifty-seven".