151311161 has 4 divisors (see below), whose sum is σ = 152725392. Its totient is φ = 149896932.

The previous prime is 151311151. The next prime is 151311191. The reversal of 151311161 is 161113151.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-151311161 is a prime.

It is a super-3 number, since 3×151311161³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (151311151) 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, 706955 + ... + 707168.

It is an arithmetic number, because the mean of its divisors is an integer number (38181348).

Almost surely, 2^151311161 is an apocalyptic number.

It is an amenable number.

151311161 is a deficient number, since it is larger than the sum of its proper divisors (1414231).

151311161 is a wasteful number, since it uses less digits than its factorization.

151311161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1414230.

The product of its digits is 90, while the sum is 20.

The square root of 151311161 is about 12300.8601731749. The cubic root of 151311161 is about 532.8729250121.

The spelling of 151311161 in words is "one hundred fifty-one million, three hundred eleven thousand, one hundred sixty-one".