126051401 has 4 divisors (see below), whose sum is σ = 144058752. Its totient is φ = 108044052.

The previous prime is 126051391. The next prime is 126051421. The reversal of 126051401 is 104150621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 126051401 - 2⁶ = 126051337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126051421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9003665 + ... + 9003678.

It is an arithmetic number, because the mean of its divisors is an integer number (36014688).

Almost surely, 2^126051401 is an apocalyptic number.

It is an amenable number.

126051401 is a deficient number, since it is larger than the sum of its proper divisors (18007351).

126051401 is an equidigital number, since it uses as much as digits as its factorization.

126051401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18007350.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 126051401 is about 11227.2615093797. The cubic root of 126051401 is about 501.3979557965.

The spelling of 126051401 in words is "one hundred twenty-six million, fifty-one thousand, four hundred one".