45111137 has 4 divisors (see below), whose sum is σ = 45129876. Its totient is φ = 45092400.

The previous prime is 45111127. The next prime is 45111151. The reversal of 45111137 is 73111154.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 73111154 = 2 ⋅36555577.

It can be written as a sum of positive squares in 2 ways, for example, as 24960016 + 20151121 = 4996^2 + 4489^2 .

It is a cyclic number.

It is not a de Polignac number, because 45111137 - 2¹⁰ = 45110113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45111127) 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, 5114 + ... + 10787.

It is an arithmetic number, because the mean of its divisors is an integer number (11282469).

Almost surely, 2^45111137 is an apocalyptic number.

It is an amenable number.

45111137 is a deficient number, since it is larger than the sum of its proper divisors (18739).

45111137 is a wasteful number, since it uses less digits than its factorization.

45111137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18738.

The product of its digits is 420, while the sum is 23.

The square root of 45111137 is about 6716.4824871357. The cubic root of 45111137 is about 355.9819063522.

The spelling of 45111137 in words is "forty-five million, one hundred eleven thousand, one hundred thirty-seven".