45427637 has 2 divisors, whose sum is σ = 45427638. Its totient is φ = 45427636.

The previous prime is 45427633. The next prime is 45427639. The reversal of 45427637 is 73672454.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40436881 + 4990756 = 6359^2 + 2234^2 .

It is a cyclic number.

It is not a de Polignac number, because 45427637 - 2² = 45427633 is a prime.

Together with 45427639, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 45427637.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45427633) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22713818 + 22713819.

It is an arithmetic number, because the mean of its divisors is an integer number (22713819).

Almost surely, 2^45427637 is an apocalyptic number.

It is an amenable number.

45427637 is a deficient number, since it is larger than the sum of its proper divisors (1).

45427637 is an equidigital number, since it uses as much as digits as its factorization.

45427637 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 141120, while the sum is 38.

The square root of 45427637 is about 6740.0027448066. The cubic root of 45427637 is about 356.8124906184.

It can be divided in two parts, 45427 and 637, that added together give a palindrome (46064).

The spelling of 45427637 in words is "forty-five million, four hundred twenty-seven thousand, six hundred thirty-seven".