163142456 has 8 divisors (see below), whose sum is σ = 305892120. Its totient is φ = 81571224.

The previous prime is 163142453. The next prime is 163142461. The reversal of 163142456 is 654241361.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163142453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10196396 + ... + 10196411.

It is an arithmetic number, because the mean of its divisors is an integer number (38236515).

Almost surely, 2^163142456 is an apocalyptic number.

It is an amenable number.

163142456 is a deficient number, since it is larger than the sum of its proper divisors (142749664).

163142456 is a wasteful number, since it uses less digits than its factorization.

163142456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20392813 (or 20392809 counting only the distinct ones).

The product of its digits is 17280, while the sum is 32.

The square root of 163142456 is about 12772.7231239074. The cubic root of 163142456 is about 546.4146465408.

The spelling of 163142456 in words is "one hundred sixty-three million, one hundred forty-two thousand, four hundred fifty-six".