163264742 has 4 divisors (see below), whose sum is σ = 244897116. Its totient is φ = 81632370.

The previous prime is 163264733. The next prime is 163264781. The reversal of 163264742 is 247462361.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40816184 + ... + 40816187.

It is an arithmetic number, because the mean of its divisors is an integer number (61224279).

Almost surely, 2^163264742 is an apocalyptic number.

163264742 is a deficient number, since it is larger than the sum of its proper divisors (81632374).

163264742 is an equidigital number, since it uses as much as digits as its factorization.

163264742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81632373.

The product of its digits is 48384, while the sum is 35.

The square root of 163264742 is about 12777.5092251972. The cubic root of 163264742 is about 546.5511370147.

The spelling of 163264742 in words is "one hundred sixty-three million, two hundred sixty-four thousand, seven hundred forty-two".