151122331 has 4 divisors (see below), whose sum is σ = 151724664. Its totient is φ = 150520000.

The previous prime is 151122313. The next prime is 151122359. The reversal of 151122331 is 133221151.

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 151122331 - 2⁷ = 151122203 is a prime.

It is a super-2 number, since 2×151122331² = 45675917853747122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 151122299 and 151122308.

It is not an unprimeable number, because it can be changed into a prime (151122311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 300790 + ... + 301291.

It is an arithmetic number, because the mean of its divisors is an integer number (37931166).

Almost surely, 2^151122331 is an apocalyptic number.

151122331 is a deficient number, since it is larger than the sum of its proper divisors (602333).

151122331 is an equidigital number, since it uses as much as digits as its factorization.

151122331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 602332.

The product of its digits is 180, while the sum is 19.

The square root of 151122331 is about 12293.1822975176. The cubic root of 151122331 is about 532.6511650302.

Adding to 151122331 its reverse (133221151), we get a palindrome (284343482).

The spelling of 151122331 in words is "one hundred fifty-one million, one hundred twenty-two thousand, three hundred thirty-one".