161056151 has 4 divisors (see below), whose sum is σ = 161462232. Its totient is φ = 160650072.

The previous prime is 161056121. The next prime is 161056211. The reversal of 161056151 is 151650161.

161056151 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 161056151 - 2⁶ = 161056087 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 161056151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161056121) 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, 202445 + ... + 203238.

It is an arithmetic number, because the mean of its divisors is an integer number (40365558).

Almost surely, 2^161056151 is an apocalyptic number.

161056151 is a deficient number, since it is larger than the sum of its proper divisors (406081).

161056151 is an equidigital number, since it uses as much as digits as its factorization.

161056151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406080.

The product of its (nonzero) digits is 900, while the sum is 26.

The square root of 161056151 is about 12690.7900069302. The cubic root of 161056151 is about 544.0754191409.

The spelling of 161056151 in words is "one hundred sixty-one million, fifty-six thousand, one hundred fifty-one".