151727161 has 4 divisors (see below), whose sum is σ = 151793892. Its totient is φ = 151660432.

The previous prime is 151727129. The next prime is 151727171. The reversal of 151727161 is 161727151.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 161727151 = 89 ⋅1817159.

It can be written as a sum of positive squares in 2 ways, for example, as 74287161 + 77440000 = 8619^2 + 8800^2 .

It is a cyclic number.

It is not a de Polignac number, because 151727161 - 2⁵ = 151727129 is a prime.

It is a super-2 number, since 2×151727161² = 46042262770239842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (151727171) 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, 29830 + ... + 34543.

It is an arithmetic number, because the mean of its divisors is an integer number (37948473).

Almost surely, 2^151727161 is an apocalyptic number.

It is an amenable number.

151727161 is a deficient number, since it is larger than the sum of its proper divisors (66731).

151727161 is an equidigital number, since it uses as much as digits as its factorization.

151727161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66730.

The product of its digits is 2940, while the sum is 31.

The square root of 151727161 is about 12317.7579534589. The cubic root of 151727161 is about 533.3608209357.

The spelling of 151727161 in words is "one hundred fifty-one million, seven hundred twenty-seven thousand, one hundred sixty-one".