126693457 has 8 divisors (see below), whose sum is σ = 139504032. Its totient is φ = 114098400.

The previous prime is 126693433. The next prime is 126693461. The reversal of 126693457 is 754396621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126693457 is a prime.

It is a super-2 number, since 2×126693457² = 32102464093221698, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (126693487) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52644 + ... + 54997.

It is an arithmetic number, because the mean of its divisors is an integer number (17438004).

Almost surely, 2^126693457 is an apocalyptic number.

It is an amenable number.

126693457 is a deficient number, since it is larger than the sum of its proper divisors (12810575).

126693457 is a wasteful number, since it uses less digits than its factorization.

126693457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107759.

The product of its digits is 272160, while the sum is 43.

The square root of 126693457 is about 11255.8188062886. The cubic root of 126693457 is about 502.2478221147.

The spelling of 126693457 in words is "one hundred twenty-six million, six hundred ninety-three thousand, four hundred fifty-seven".