145480637 has 2 divisors, whose sum is σ = 145480638. Its totient is φ = 145480636.

The previous prime is 145480631. The next prime is 145480691. The reversal of 145480637 is 736084541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 103347556 + 42133081 = 10166^2 + 6491^2 .

It is a cyclic number.

It is not a de Polignac number, because 145480637 - 2²⁰ = 144432061 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 145480637.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145480631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72740318 + 72740319.

It is an arithmetic number, because the mean of its divisors is an integer number (72740319).

Almost surely, 2^145480637 is an apocalyptic number.

It is an amenable number.

145480637 is a deficient number, since it is larger than the sum of its proper divisors (1).

145480637 is an equidigital number, since it uses as much as digits as its factorization.

145480637 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 145480637 is about 12061.5354329372. The cubic root of 145480637 is about 525.9386226195.

The spelling of 145480637 in words is "one hundred forty-five million, four hundred eighty thousand, six hundred thirty-seven".