63156140 has 12 divisors (see below), whose sum is σ = 132627936. Its totient is φ = 25262448.

The previous prime is 63156127. The next prime is 63156157. The reversal of 63156140 is 4165136.

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, 1578884 + ... + 1578923.

It is an arithmetic number, because the mean of its divisors is an integer number (11052328).

Almost surely, 2^63156140 is an apocalyptic number.

It is an amenable number.

63156140 is an abundant number, since it is smaller than the sum of its proper divisors (69471796).

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

63156140 is a wasteful number, since it uses less digits than its factorization.

63156140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3157816 (or 3157814 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 63156140 is about 7947.0837418515. The cubic root of 63156140 is about 398.2341744547.

The spelling of 63156140 in words is "sixty-three million, one hundred fifty-six thousand, one hundred forty".