46145021 has 16 divisors (see below), whose sum is σ = 53524800. Its totient is φ = 39399168.

The previous prime is 46145017. The next prime is 46145059. The reversal of 46145021 is 12054164.

It is a cyclic number.

It is not a de Polignac number, because 46145021 - 2² = 46145017 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (46145221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11270 + ... + 14808.

It is an arithmetic number, because the mean of its divisors is an integer number (3345300).

Almost surely, 2^46145021 is an apocalyptic number.

It is an amenable number.

46145021 is a deficient number, since it is larger than the sum of its proper divisors (7379779).

46145021 is a wasteful number, since it uses less digits than its factorization.

46145021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3628.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 46145021 is about 6793.0126600795. The cubic root of 46145021 is about 358.6809262944.

Adding to 46145021 its reverse (12054164), we get a palindrome (58199185).

The spelling of 46145021 in words is "forty-six million, one hundred forty-five thousand, twenty-one".