1612157 has 2 divisors, whose sum is σ = 1612158. Its totient is φ = 1612156.

The previous prime is 1612141. The next prime is 1612181. The reversal of 1612157 is 7512161.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1522756 + 89401 = 1234^2 + 299^2 .

It is a cyclic number.

It is not a de Polignac number, because 1612157 - 2⁴ = 1612141 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1612957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 806078 + 806079.

It is an arithmetic number, because the mean of its divisors is an integer number (806079).

2^1612157 is an apocalyptic number.

It is an amenable number.

1612157 is a deficient number, since it is larger than the sum of its proper divisors (1).

1612157 is an equidigital number, since it uses as much as digits as its factorization.

1612157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 420, while the sum is 23.

The square root of 1612157 is about 1269.7074466191. The cubic root of 1612157 is about 117.2561897857.

The spelling of 1612157 in words is "one million, six hundred twelve thousand, one hundred fifty-seven".