45051765 has 32 divisors (see below), whose sum is σ = 79249536. Its totient is φ = 21672960.

The previous prime is 45051763. The next prime is 45051767. The reversal of 45051765 is 56715054.

It is an interprime number because it is at equal distance from previous prime (45051763) and next prime (45051767).

It is not a de Polignac number, because 45051765 - 2¹ = 45051763 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45051763) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21609 + ... + 23601.

It is an arithmetic number, because the mean of its divisors is an integer number (2476548).

Almost surely, 2^45051765 is an apocalyptic number.

It is an amenable number.

45051765 is a deficient number, since it is larger than the sum of its proper divisors (34197771).

45051765 is a wasteful number, since it uses less digits than its factorization.

45051765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2149.

The product of its (nonzero) digits is 21000, while the sum is 33.

The square root of 45051765 is about 6712.0611588394. The cubic root of 45051765 is about 355.8256652832.

Adding to 45051765 its product of nonzero digits (21000), we get a triangular number (45072765 = T₉₄₉₄).

The spelling of 45051765 in words is "forty-five million, fifty-one thousand, seven hundred sixty-five".