45420032237 has 2 divisors, whose sum is σ = 45420032238. Its totient is φ = 45420032236.

The previous prime is 45420032159. The next prime is 45420032267. The reversal of 45420032237 is 73223002454.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35445216361 + 9974815876 = 188269^2 + 99874^2 .

It is a cyclic number.

It is not a de Polignac number, because 45420032237 - 2³⁴ = 28240163053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45420032267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22710016118 + 22710016119.

It is an arithmetic number, because the mean of its divisors is an integer number (22710016119).

Almost surely, 2^45420032237 is an apocalyptic number.

It is an amenable number.

45420032237 is a deficient number, since it is larger than the sum of its proper divisors (1).

45420032237 is an equidigital number, since it uses as much as digits as its factorization.

45420032237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 32.

The spelling of 45420032237 in words is "forty-five billion, four hundred twenty million, thirty-two thousand, two hundred thirty-seven".