126923138 has 8 divisors (see below), whose sum is σ = 192794880. Its totient is φ = 62658180.

The previous prime is 126923113. The next prime is 126923141. The reversal of 126923138 is 831329621.

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

It is a super-2 number, since 2×126923138² = 32218965919534088, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 126923098 and 126923107.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 401498 + ... + 401813.

It is an arithmetic number, because the mean of its divisors is an integer number (24099360).

Almost surely, 2^126923138 is an apocalyptic number.

126923138 is a deficient number, since it is larger than the sum of its proper divisors (65871742).

126923138 is an equidigital number, since it uses as much as digits as its factorization.

126923138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 803392.

The product of its digits is 15552, while the sum is 35.

The square root of 126923138 is about 11266.0169536531. The cubic root of 126923138 is about 502.5511451783.

The spelling of 126923138 in words is "one hundred twenty-six million, nine hundred twenty-three thousand, one hundred thirty-eight".