126886251 has 8 divisors (see below), whose sum is σ = 169237504. Its totient is φ = 84562920.

The previous prime is 126886247. The next prime is 126886261. The reversal of 126886251 is 152688621.

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

It is not a de Polignac number, because 126886251 - 2² = 126886247 is a prime.

It is a super-2 number, since 2×126886251² = 32200241385670002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126886241) 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, 8586 + ... + 18096.

It is an arithmetic number, because the mean of its divisors is an integer number (21154688).

Almost surely, 2^126886251 is an apocalyptic number.

126886251 is a deficient number, since it is larger than the sum of its proper divisors (42351253).

126886251 is an equidigital number, since it uses as much as digits as its factorization.

126886251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13961.

The product of its digits is 46080, while the sum is 39.

The square root of 126886251 is about 11264.3797432437. The cubic root of 126886251 is about 502.5024558678.

The spelling of 126886251 in words is "one hundred twenty-six million, eight hundred eighty-six thousand, two hundred fifty-one".