1491616162 has 16 divisors (see below), whose sum is σ = 2294385912. Its totient is φ = 726858880.

The previous prime is 1491616127. The next prime is 1491616163. The reversal of 1491616162 is 2616161941.

It can be written as a sum of positive squares in 4 ways, for example, as 930921121 + 560695041 = 30511^2 + 23679^2 .

It is a super-2 number, since 2×1491616162² = 4449837549479220488, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1491616163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74088 + ... + 92044.

Almost surely, 2^1491616162 is an apocalyptic number.

1491616162 is a deficient number, since it is larger than the sum of its proper divisors (802769750).

1491616162 is a wasteful number, since it uses less digits than its factorization.

1491616162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19013.

The product of its digits is 15552, while the sum is 37.

The square root of 1491616162 is about 38621.4469174836. The cubic root of 1491616162 is about 1142.5775681957.

The spelling of 1491616162 in words is "one billion, four hundred ninety-one million, six hundred sixteen thousand, one hundred sixty-two".