45940061 has 4 divisors (see below), whose sum is σ = 45953724. Its totient is φ = 45926400.

The previous prime is 45940057. The next prime is 45940067. The reversal of 45940061 is 16004954.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 13734436 + 32205625 = 3706^2 + 5675^2 .

It is a cyclic number.

It is not a de Polignac number, because 45940061 - 2² = 45940057 is a prime.

It is a super-2 number, since 2×45940061² = 4220978409367442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45940067) 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, 2141 + ... + 9821.

It is an arithmetic number, because the mean of its divisors is an integer number (11488431).

Almost surely, 2^45940061 is an apocalyptic number.

It is an amenable number.

45940061 is a deficient number, since it is larger than the sum of its proper divisors (13663).

45940061 is an equidigital number, since it uses as much as digits as its factorization.

45940061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13662.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 45940061 is about 6777.9097810461. The cubic root of 45940061 is about 358.1490931489.

The spelling of 45940061 in words is "forty-five million, nine hundred forty thousand, sixty-one".