151139227 has 4 divisors (see below), whose sum is σ = 151544800. Its totient is φ = 150733656.

The previous prime is 151139207. The next prime is 151139257. The reversal of 151139227 is 722931151.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-151139227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (151139207) 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, 202227 + ... + 202972.

It is an arithmetic number, because the mean of its divisors is an integer number (37886200).

Almost surely, 2^151139227 is an apocalyptic number.

151139227 is a deficient number, since it is larger than the sum of its proper divisors (405573).

151139227 is an equidigital number, since it uses as much as digits as its factorization.

151139227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405572.

The product of its digits is 3780, while the sum is 31.

The square root of 151139227 is about 12293.8694884890. The cubic root of 151139227 is about 532.6710150388.

The spelling of 151139227 in words is "one hundred fifty-one million, one hundred thirty-nine thousand, two hundred twenty-seven".