63156442 has 8 divisors (see below), whose sum is σ = 95231232. Its totient is φ = 31412700.

The previous prime is 63156389. The next prime is 63156449. The reversal of 63156442 is 24465136.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (63156449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82284 + ... + 83047.

It is an arithmetic number, because the mean of its divisors is an integer number (11903904).

Almost surely, 2^63156442 is an apocalyptic number.

63156442 is a deficient number, since it is larger than the sum of its proper divisors (32074790).

63156442 is a wasteful number, since it uses less digits than its factorization.

63156442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165524.

The product of its digits is 17280, while the sum is 31.

The square root of 63156442 is about 7947.1027425094. The cubic root of 63156442 is about 398.2348092124.

The spelling of 63156442 in words is "sixty-three million, one hundred fifty-six thousand, four hundred forty-two".