126375691 has 16 divisors (see below), whose sum is σ = 139708800. Its totient is φ = 113592960.

The previous prime is 126375679. The next prime is 126375703. The reversal of 126375691 is 196573621.

It is an interprime number because it is at equal distance from previous prime (126375679) and next prime (126375703).

It is not a de Polignac number, because 126375691 - 2⁷ = 126375563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126375391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102046 + ... + 103276.

It is an arithmetic number, because the mean of its divisors is an integer number (8731800).

Almost surely, 2^126375691 is an apocalyptic number.

126375691 is a deficient number, since it is larger than the sum of its proper divisors (13333109).

126375691 is a wasteful number, since it uses less digits than its factorization.

126375691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1446.

The product of its digits is 68040, while the sum is 40.

The square root of 126375691 is about 11241.6943118019. The cubic root of 126375691 is about 501.8275665291.

The spelling of 126375691 in words is "one hundred twenty-six million, three hundred seventy-five thousand, six hundred ninety-one".