126157929 has 16 divisors (see below), whose sum is σ = 178348800. Its totient is φ = 79100496.

The previous prime is 126157907. The next prime is 126157937. The reversal of 126157929 is 929751621.

It is not a de Polignac number, because 126157929 - 2⁸ = 126157673 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (126157949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39 + ... + 15884.

It is an arithmetic number, because the mean of its divisors is an integer number (11146800).

Almost surely, 2^126157929 is an apocalyptic number.

126157929 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

126157929 is a deficient number, since it is larger than the sum of its proper divisors (52190871).

126157929 is a wasteful number, since it uses less digits than its factorization.

126157929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16084.

The product of its digits is 68040, while the sum is 42.

The square root of 126157929 is about 11232.0046741443. The cubic root of 126157929 is about 501.5391624296.

The spelling of 126157929 in words is "one hundred twenty-six million, one hundred fifty-seven thousand, nine hundred twenty-nine".