46131021 has 6 divisors (see below), whose sum is σ = 66633710. Its totient is φ = 30754008.

The previous prime is 46130999. The next prime is 46131049. The reversal of 46131021 is 12013164.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 46049796 + 81225 = 6786^2 + 285^2 .

It is not a de Polignac number, because 46131021 - 2¹⁰ = 46129997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 46130985 and 46131003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (46131061) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2562826 + ... + 2562843.

Almost surely, 2^46131021 is an apocalyptic number.

It is an amenable number.

46131021 is a deficient number, since it is larger than the sum of its proper divisors (20502689).

46131021 is a wasteful number, since it uses less digits than its factorization.

46131021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5125675 (or 5125672 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 46131021 is about 6791.9821112839. The cubic root of 46131021 is about 358.6446490625.

Adding to 46131021 its reverse (12013164), we get a palindrome (58144185).

The spelling of 46131021 in words is "forty-six million, one hundred thirty-one thousand, twenty-one".