126275251 has 8 divisors (see below), whose sum is σ = 131292000. Its totient is φ = 121302720.

The previous prime is 126275249. The next prime is 126275293. The reversal of 126275251 is 152572621.

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 126275251 - 2¹ = 126275249 is a prime.

It is a super-2 number, since 2×126275251² = 31890878030226002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126275651) 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, 5170 + ... + 16711.

It is an arithmetic number, because the mean of its divisors is an integer number (16411500).

Almost surely, 2^126275251 is an apocalyptic number.

126275251 is a deficient number, since it is larger than the sum of its proper divisors (5016749).

126275251 is a wasteful number, since it uses less digits than its factorization.

126275251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22109.

The product of its digits is 8400, while the sum is 31.

The square root of 126275251 is about 11237.2261256949. The cubic root of 126275251 is about 501.6945849421.

The spelling of 126275251 in words is "one hundred twenty-six million, two hundred seventy-five thousand, two hundred fifty-one".