126921141 has 8 divisors (see below), whose sum is σ = 188031360. Its totient is φ = 84614076.

The previous prime is 126921097. The next prime is 126921173. The reversal of 126921141 is 141129621.

It is not a de Polignac number, because 126921141 - 2¹³ = 126912949 is a prime.

It is a super-2 number, since 2×126921141² = 32217952065483762, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 4700783 = 126921141 / (1 + 2 + 6 + 9 + 2 + 1 + 1 + 4 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126921241) 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, 2350365 + ... + 2350418.

It is an arithmetic number, because the mean of its divisors is an integer number (23503920).

Almost surely, 2^126921141 is an apocalyptic number.

It is an amenable number.

126921141 is a deficient number, since it is larger than the sum of its proper divisors (61110219).

126921141 is an equidigital number, since it uses as much as digits as its factorization.

126921141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4700792 (or 4700786 counting only the distinct ones).

The product of its digits is 864, while the sum is 27.

The square root of 126921141 is about 11265.9283239332. The cubic root of 126921141 is about 502.5485094626.

The spelling of 126921141 in words is "one hundred twenty-six million, nine hundred twenty-one thousand, one hundred forty-one".