151328881 has 4 divisors (see below), whose sum is σ = 165086064. Its totient is φ = 137571700.

The previous prime is 151328867. The next prime is 151328893. The reversal of 151328881 is 188823151.

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 not a de Polignac number, because 151328881 - 2¹⁵ = 151296113 is a prime.

It is a super-2 number, since 2×151328881² = 45800860449424322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 151328881.

It is not an unprimeable number, because it can be changed into a prime (151328831) 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, 6878575 + ... + 6878596.

It is an arithmetic number, because the mean of its divisors is an integer number (41271516).

Almost surely, 2^151328881 is an apocalyptic number.

151328881 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

151328881 is a deficient number, since it is larger than the sum of its proper divisors (13757183).

151328881 is a wasteful number, since it uses less digits than its factorization.

151328881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13757182.

The product of its digits is 15360, while the sum is 37.

The square root of 151328881 is about 12301.5804269208. The cubic root of 151328881 is about 532.8937257241.

The spelling of 151328881 in words is "one hundred fifty-one million, three hundred twenty-eight thousand, eight hundred eighty-one".