126899129 has 8 divisors (see below), whose sum is σ = 145668288. Its totient is φ = 108290160.

The previous prime is 126899117. The next prime is 126899153. The reversal of 126899129 is 921998621.

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

It is a cyclic number.

It is not a de Polignac number, because 126899129 - 2¹⁶ = 126833593 is a prime.

It is a super-2 number, since 2×126899129² = 32206777881917282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126899189) 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, 38342 + ... + 41519.

It is an arithmetic number, because the mean of its divisors is an integer number (18208536).

Almost surely, 2^126899129 is an apocalyptic number.

It is an amenable number.

126899129 is a deficient number, since it is larger than the sum of its proper divisors (18769159).

126899129 is an equidigital number, since it uses as much as digits as its factorization.

126899129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80095.

The product of its digits is 139968, while the sum is 47.

The square root of 126899129 is about 11264.9513536455. The cubic root of 126899129 is about 502.5194553658.

The spelling of 126899129 in words is "one hundred twenty-six million, eight hundred ninety-nine thousand, one hundred twenty-nine".