126254121 has 16 divisors (see below), whose sum is σ = 203704704. Its totient is φ = 67901184.

The previous prime is 126254113. The next prime is 126254137. The reversal of 126254121 is 121452621.

It is not a de Polignac number, because 126254121 - 2³ = 126254113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 126254091 and 126254100.

It is not an unprimeable number, because it can be changed into a prime (126254021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 176470 + ... + 177183.

It is an arithmetic number, because the mean of its divisors is an integer number (12731544).

Almost surely, 2^126254121 is an apocalyptic number.

It is an amenable number.

126254121 is a deficient number, since it is larger than the sum of its proper divisors (77450583).

126254121 is a wasteful number, since it uses less digits than its factorization.

126254121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353680.

The product of its digits is 960, while the sum is 24.

The square root of 126254121 is about 11236.2859077188. The cubic root of 126254121 is about 501.6666000498. Note that the first 4 decimals are identical.

The spelling of 126254121 in words is "one hundred twenty-six million, two hundred fifty-four thousand, one hundred twenty-one".