1445157 has 36 divisors (see below), whose sum is σ = 2534220. Its totient is φ = 790272.

The previous prime is 1445149. The next prime is 1445161. The reversal of 1445157 is 7515441.

It is a happy number.

1445157 is a `hidden beast` number, since 144 + 515 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 298116 + 1147041 = 546^2 + 1071^2 .

It is not a de Polignac number, because 1445157 - 2³ = 1445149 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1445157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1445107) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 12733 + ... + 12845.

It is an arithmetic number, because the mean of its divisors is an integer number (70395).

2^1445157 is an apocalyptic number.

It is an amenable number.

1445157 is a deficient number, since it is larger than the sum of its proper divisors (1089063).

1445157 is a wasteful number, since it uses less digits than its factorization.

1445157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162 (or 152 counting only the distinct ones).

The product of its digits is 2800, while the sum is 27.

The square root of 1445157 is about 1202.1468296344. The cubic root of 1445157 is about 113.0589662747.

The spelling of 1445157 in words is "one million, four hundred forty-five thousand, one hundred fifty-seven".