45640169 has 2 divisors, whose sum is σ = 45640170. Its totient is φ = 45640168.

The previous prime is 45640151. The next prime is 45640187. The reversal of 45640169 is 96104654.

It is a balanced prime because it is at equal distance from previous prime (45640151) and next prime (45640187).

It can be written as a sum of positive squares in only one way, i.e., 39942400 + 5697769 = 6320^2 + 2387^2 .

It is a cyclic number.

It is not a de Polignac number, because 45640169 - 2²⁰ = 44591593 is a prime.

It is a super-3 number, since 3×45640169³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (45640069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22820084 + 22820085.

It is an arithmetic number, because the mean of its divisors is an integer number (22820085).

Almost surely, 2^45640169 is an apocalyptic number.

It is an amenable number.

45640169 is a deficient number, since it is larger than the sum of its proper divisors (1).

45640169 is an equidigital number, since it uses as much as digits as its factorization.

45640169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 45640169 is about 6755.7508094956. The cubic root of 45640169 is about 357.3680710324.

The spelling of 45640169 in words is "forty-five million, six hundred forty thousand, one hundred sixty-nine".