2987156 has 12 divisors (see below), whose sum is σ = 5239668. Its totient is φ = 1490112.

The previous prime is 2987147. The next prime is 2987207. The reversal of 2987156 is 6517892.

It can be written as a sum of positive squares in 2 ways, for example, as 688900 + 2298256 = 830^2 + 1516^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2720 + ... + 3656.

It is an arithmetic number, because the mean of its divisors is an integer number (436639).

2^2987156 is an apocalyptic number.

It is an amenable number.

2987156 is a deficient number, since it is larger than the sum of its proper divisors (2252512).

2987156 is a wasteful number, since it uses less digits than its factorization.

2987156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1738 (or 1736 counting only the distinct ones).

The product of its digits is 30240, while the sum is 38.

The square root of 2987156 is about 1728.3390871007. The cubic root of 2987156 is about 144.0188375562.

The spelling of 2987156 in words is "two million, nine hundred eighty-seven thousand, one hundred fifty-six".