163153274 has 4 divisors (see below), whose sum is σ = 244729914. Its totient is φ = 81576636.

The previous prime is 163153261. The next prime is 163153297. The reversal of 163153274 is 472351361.

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

It can be written as a sum of positive squares in only one way, i.e., 122257249 + 40896025 = 11057^2 + 6395^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 163153274.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40788317 + ... + 40788320.

Almost surely, 2^163153274 is an apocalyptic number.

163153274 is a deficient number, since it is larger than the sum of its proper divisors (81576640).

163153274 is an equidigital number, since it uses as much as digits as its factorization.

163153274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81576639.

The product of its digits is 15120, while the sum is 32.

The square root of 163153274 is about 12773.1465974520. The cubic root of 163153274 is about 546.4267238855.

The spelling of 163153274 in words is "one hundred sixty-three million, one hundred fifty-three thousand, two hundred seventy-four".