151212161 has 8 divisors (see below), whose sum is σ = 160216704. Its totient is φ = 142219840.

The previous prime is 151212151. The next prime is 151212181. The reversal of 151212161 is 161212151.

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

It is a cyclic number.

It is not a de Polignac number, because 151212161 - 2¹⁴ = 151195777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (151212151) 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, 39356 + ... + 43026.

It is an arithmetic number, because the mean of its divisors is an integer number (20027088).

Almost surely, 2^151212161 is an apocalyptic number.

It is an amenable number.

151212161 is a deficient number, since it is larger than the sum of its proper divisors (9004543).

151212161 is a wasteful number, since it uses less digits than its factorization.

151212161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6111.

The product of its digits is 120, while the sum is 20.

The square root of 151212161 is about 12296.8354059083. The cubic root of 151212161 is about 532.7566834676.

The spelling of 151212161 in words is "one hundred fifty-one million, two hundred twelve thousand, one hundred sixty-one".