45000077 has 2 divisors, whose sum is σ = 45000078. Its totient is φ = 45000076.

The previous prime is 45000061. The next prime is 45000097. The reversal of 45000077 is 77000054.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40883236 + 4116841 = 6394^2 + 2029^2 .

It is a cyclic number.

It is not a de Polignac number, because 45000077 - 2⁴ = 45000061 is a prime.

It is a Chen prime.

45000077 is a modest number, since divided by 77 gives 45 as remainder.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45000017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22500038 + 22500039.

It is an arithmetic number, because the mean of its divisors is an integer number (22500039).

Almost surely, 2^45000077 is an apocalyptic number.

It is an amenable number.

45000077 is a deficient number, since it is larger than the sum of its proper divisors (1).

45000077 is an equidigital number, since it uses as much as digits as its factorization.

45000077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 980, while the sum is 23.

The square root of 45000077 is about 6708.2096717381. The cubic root of 45000077 is about 355.6895333235.

Subtracting from 45000077 its sum of digits (23), we obtain a palindrome (45000054).

The spelling of 45000077 in words is "forty-five million, seventy-seven", and thus it is an aban number and an uban number.