126629129 has 16 divisors (see below), whose sum is σ = 147598080. Its totient is φ = 107418960.

The previous prime is 126629119. The next prime is 126629143. The reversal of 126629129 is 921926621.

It is a de Polignac number, because none of the positive numbers 2^k-126629129 is a prime.

It is a super-2 number, since 2×126629129² = 32069872622597282, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 126629092 and 126629101.

It is not an unprimeable number, because it can be changed into a prime (126629119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9482 + ... + 18524.

It is an arithmetic number, because the mean of its divisors is an integer number (9224880).

Almost surely, 2^126629129 is an apocalyptic number.

126629129 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

126629129 is a deficient number, since it is larger than the sum of its proper divisors (20968951).

126629129 is a wasteful number, since it uses less digits than its factorization.

126629129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9140.

The product of its digits is 23328, while the sum is 38.

The square root of 126629129 is about 11252.9608992478. The cubic root of 126629129 is about 502.1628030764.

The spelling of 126629129 in words is "one hundred twenty-six million, six hundred twenty-nine thousand, one hundred twenty-nine".