126989253 has 24 divisors (see below), whose sum is σ = 189641088. Its totient is φ = 81837312.

The previous prime is 126989243. The next prime is 126989257. The reversal of 126989253 is 352989621.

It is not a de Polignac number, because 126989253 - 2⁶ = 126989189 is a prime.

It is a super-2 number, since 2×126989253² = 32252540754996018, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 126989199 and 126989208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126989257) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33301 + ... + 36917.

It is an arithmetic number, because the mean of its divisors is an integer number (7901712).

Almost surely, 2^126989253 is an apocalyptic number.

It is an amenable number.

126989253 is a deficient number, since it is larger than the sum of its proper divisors (62651835).

126989253 is a wasteful number, since it uses less digits than its factorization.

126989253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3753 (or 3750 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 126989253 is about 11268.9508384765. The cubic root of 126989253 is about 502.6383906349.

The spelling of 126989253 in words is "one hundred twenty-six million, nine hundred eighty-nine thousand, two hundred fifty-three".