151112231 has 4 divisors (see below), whose sum is σ = 157682352. Its totient is φ = 144542112.

The previous prime is 151112219. The next prime is 151112257. The reversal of 151112231 is 132211151.

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

It is a cyclic number.

It is not a de Polignac number, because 151112231 - 2¹⁸ = 150850087 is a prime.

It is a super-2 number, since 2×151112231² = 45669812715594722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151112831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3285026 + ... + 3285071.

It is an arithmetic number, because the mean of its divisors is an integer number (39420588).

Almost surely, 2^151112231 is an apocalyptic number.

151112231 is a deficient number, since it is larger than the sum of its proper divisors (6570121).

151112231 is an equidigital number, since it uses as much as digits as its factorization.

151112231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6570120.

The product of its digits is 60, while the sum is 17.

The square root of 151112231 is about 12292.7714938495. The cubic root of 151112231 is about 532.6392984923.

Adding to 151112231 its reverse (132211151), we get a palindrome (283323382).

The spelling of 151112231 in words is "one hundred fifty-one million, one hundred twelve thousand, two hundred thirty-one".