126264451 has 4 divisors (see below), whose sum is σ = 126289504. Its totient is φ = 126239400.

The previous prime is 126264433. The next prime is 126264473. The reversal of 126264451 is 154462621.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 126264451 - 2⁷ = 126264323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126264421) 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, 2040 + ... + 16021.

It is an arithmetic number, because the mean of its divisors is an integer number (31572376).

Almost surely, 2^126264451 is an apocalyptic number.

126264451 is a deficient number, since it is larger than the sum of its proper divisors (25053).

126264451 is an equidigital number, since it uses as much as digits as its factorization.

126264451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25052.

The product of its digits is 11520, while the sum is 31.

The square root of 126264451 is about 11236.7455697813. The cubic root of 126264451 is about 501.6802816485.

The spelling of 126264451 in words is "one hundred twenty-six million, two hundred sixty-four thousand, four hundred fifty-one".