45680137 has 4 divisors (see below), whose sum is σ = 46084500. Its totient is φ = 45275776.

The previous prime is 45680111. The next prime is 45680153. The reversal of 45680137 is 73108654.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23580736 + 22099401 = 4856^2 + 4701^2 .

It is a cyclic number.

It is not a de Polignac number, because 45680137 - 2¹¹ = 45678089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45680197) 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, 202012 + ... + 202237.

It is an arithmetic number, because the mean of its divisors is an integer number (11521125).

Almost surely, 2^45680137 is an apocalyptic number.

It is an amenable number.

45680137 is a deficient number, since it is larger than the sum of its proper divisors (404363).

45680137 is a wasteful number, since it uses less digits than its factorization.

45680137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404362.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 45680137 is about 6758.7082345667. The cubic root of 45680137 is about 357.4723586955.

The spelling of 45680137 in words is "forty-five million, six hundred eighty thousand, one hundred thirty-seven".