455012121 has 4 divisors (see below), whose sum is σ = 606682832. Its totient is φ = 303341412.

The previous prime is 455012119. The next prime is 455012143. The reversal of 455012121 is 121210554.

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 not a de Polignac number, because 455012121 - 2¹ = 455012119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (455012161) 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, 75835351 + ... + 75835356.

It is an arithmetic number, because the mean of its divisors is an integer number (151670708).

Almost surely, 2^455012121 is an apocalyptic number.

It is an amenable number.

455012121 is a deficient number, since it is larger than the sum of its proper divisors (151670711).

455012121 is a wasteful number, since it uses less digits than its factorization.

455012121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151670710.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 455012121 is about 21331.0131264317. The cubic root of 455012121 is about 769.1439978628.

Adding to 455012121 its reverse (121210554), we get a palindrome (576222675).

The spelling of 455012121 in words is "four hundred fifty-five million, twelve thousand, one hundred twenty-one".