45131765 has 16 divisors (see below), whose sum is σ = 62912640. Its totient is φ = 30438720.

The previous prime is 45131761. The next prime is 45131767. The reversal of 45131765 is 56713154.

It is not a de Polignac number, because 45131765 - 2² = 45131761 is a prime.

It is a super-3 number, since 3×45131765³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45131761) 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, 8435 + ... + 12704.

It is an arithmetic number, because the mean of its divisors is an integer number (3932040).

Almost surely, 2^45131765 is an apocalyptic number.

It is an amenable number.

45131765 is a deficient number, since it is larger than the sum of its proper divisors (17780875).

45131765 is a wasteful number, since it uses less digits than its factorization.

45131765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21212.

The product of its digits is 12600, while the sum is 32.

The square root of 45131765 is about 6718.0179368620. The cubic root of 45131765 is about 356.0361581125.

The spelling of 45131765 in words is "forty-five million, one hundred thirty-one thousand, seven hundred sixty-five".