1616157 has 6 divisors (see below), whose sum is σ = 2334462. Its totient is φ = 1077432.

The previous prime is 1616119. The next prime is 1616161. The reversal of 1616157 is 7516161.

It can be written as a sum of positive squares in only one way, i.e., 1490841 + 125316 = 1221^2 + 354^2 .

It is not a de Polignac number, because 1616157 - 2⁷ = 1616029 is a prime.

It is a super-2 number, since 2×1616157² = 5223926897298, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1616157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1616057) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 89778 + ... + 89795.

It is an arithmetic number, because the mean of its divisors is an integer number (389077).

2^1616157 is an apocalyptic number.

It is an amenable number.

1616157 is a deficient number, since it is larger than the sum of its proper divisors (718305).

1616157 is a wasteful number, since it uses less digits than its factorization.

1616157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179579 (or 179576 counting only the distinct ones).

The product of its digits is 1260, while the sum is 27.

The square root of 1616157 is about 1271.2816367745. The cubic root of 1616157 is about 117.3530863424.

The spelling of 1616157 in words is "one million, six hundred sixteen thousand, one hundred fifty-seven".