3132781156 has 6 divisors (see below), whose sum is σ = 5482367030. Its totient is φ = 1566390576.

The previous prime is 3132781147. The next prime is 3132781163. The reversal of 3132781156 is 6511872313.

It can be written as a sum of positive squares in only one way, i.e., 3028741156 + 104040000 = 55034^2 + 10200^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 391597641 + ... + 391597648.

Almost surely, 2^3132781156 is an apocalyptic number.

It is an amenable number.

3132781156 is a deficient number, since it is larger than the sum of its proper divisors (2349585874).

3132781156 is a wasteful number, since it uses less digits than its factorization.

3132781156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 783195293 (or 783195291 counting only the distinct ones).

The product of its digits is 30240, while the sum is 37.

The square root of 3132781156 is about 55971.2529429170. The cubic root of 3132781156 is about 1463.2213160460.

The spelling of 3132781156 in words is "three billion, one hundred thirty-two million, seven hundred eighty-one thousand, one hundred fifty-six".