1445108157 has 12 divisors (see below), whose sum is σ = 2106530140. Its totient is φ = 954566208.

The previous prime is 1445108143. The next prime is 1445108179. The reversal of 1445108157 is 7518015441.

1445108157 is a `hidden beast` number, since 14 + 4 + 510 + 81 + 57 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 663011001 + 782097156 = 25749^2 + 27966^2 .

It is not a de Polignac number, because 1445108157 - 2⁴ = 1445108141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1445108057) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 735568 + ... + 737529.

Almost surely, 2^1445108157 is an apocalyptic number.

It is an amenable number.

1445108157 is a deficient number, since it is larger than the sum of its proper divisors (661421983).

1445108157 is a wasteful number, since it uses less digits than its factorization.

1445108157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1473212 (or 1473209 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 36.

The square root of 1445108157 is about 38014.5782167841. The cubic root of 1445108157 is about 1130.5769254888.

The spelling of 1445108157 in words is "one billion, four hundred forty-five million, one hundred eight thousand, one hundred fifty-seven".