161180151 has 8 divisors (see below), whose sum is σ = 234443904. Its totient is φ = 97684920.

The previous prime is 161180141. The next prime is 161180209. The reversal of 161180151 is 151081161.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-161180151 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161180101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2442091 + ... + 2442156.

It is an arithmetic number, because the mean of its divisors is an integer number (29305488).

Almost surely, 2^161180151 is an apocalyptic number.

161180151 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

161180151 is a deficient number, since it is larger than the sum of its proper divisors (73263753).

161180151 is a wasteful number, since it uses less digits than its factorization.

161180151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4884261.

The product of its (nonzero) digits is 240, while the sum is 24.

The square root of 161180151 is about 12695.6744996081. The cubic root of 161180151 is about 544.2150144409.

The spelling of 161180151 in words is "one hundred sixty-one million, one hundred eighty thousand, one hundred fifty-one".