46121021 has 4 divisors (see below), whose sum is σ = 46138752. Its totient is φ = 46103292.

The previous prime is 46120993. The next prime is 46121027. The reversal of 46121021 is 12012164.

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 a de Polignac number, because none of the positive numbers 2^k-46121021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (46121027) 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, 4115 + ... + 10448.

It is an arithmetic number, because the mean of its divisors is an integer number (11534688).

Almost surely, 2^46121021 is an apocalyptic number.

It is an amenable number.

46121021 is a deficient number, since it is larger than the sum of its proper divisors (17731).

46121021 is a wasteful number, since it uses less digits than its factorization.

46121021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17730.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 46121021 is about 6791.2459092570. The cubic root of 46121021 is about 358.6187322600.

Adding to 46121021 its reverse (12012164), we get a palindrome (58133185).

The spelling of 46121021 in words is "forty-six million, one hundred twenty-one thousand, twenty-one".