549702156 has 12 divisors (see below), whose sum is σ = 1282638392. Its totient is φ = 183234048.

The previous prime is 549702149. The next prime is 549702187. The reversal of 549702156 is 651207945.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×549702156² = 604344920622096672, which contains 22 as substring.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22904245 + ... + 22904268.

Almost surely, 2^549702156 is an apocalyptic number.

It is an amenable number.

549702156 is an abundant number, since it is smaller than the sum of its proper divisors (732936236).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

549702156 is a wasteful number, since it uses less digits than its factorization.

549702156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45808520 (or 45808518 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 39.

The square root of 549702156 is about 23445.7278837745. The cubic root of 549702156 is about 819.1733469716.

It can be divided in two parts, 549 and 702156, that added together give a triangular number (702705 = T₁₁₈₅).

The spelling of 549702156 in words is "five hundred forty-nine million, seven hundred two thousand, one hundred fifty-six".