126989151 has 8 divisors (see below), whose sum is σ = 169585584. Its totient is φ = 84526080.

The previous prime is 126989147. The next prime is 126989153. The reversal of 126989151 is 151989621.

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

It is not a de Polignac number, because 126989151 - 2² = 126989147 is a prime.

It is a super-2 number, since 2×126989151² = 32252488943401602, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126989153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31096 + ... + 34941.

It is an arithmetic number, because the mean of its divisors is an integer number (21198198).

Almost surely, 2^126989151 is an apocalyptic number.

126989151 is a deficient number, since it is larger than the sum of its proper divisors (42596433).

126989151 is an equidigital number, since it uses as much as digits as its factorization.

126989151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66681.

The product of its digits is 38880, while the sum is 42.

The square root of 126989151 is about 11268.9463127659. The cubic root of 126989151 is about 502.6382560589.

The spelling of 126989151 in words is "one hundred twenty-six million, nine hundred eighty-nine thousand, one hundred fifty-one".