151115233 has 4 divisors (see below), whose sum is σ = 152673220. Its totient is φ = 149557248.

The previous prime is 151115231. The next prime is 151115249. The reversal of 151115233 is 332511151.

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

It can be written as a sum of positive squares in 2 ways, for example, as 82755409 + 68359824 = 9097^2 + 8268^2 .

It is a cyclic number.

It is not a de Polignac number, because 151115233 - 2¹ = 151115231 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (151115231) 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, 778848 + ... + 779041.

It is an arithmetic number, because the mean of its divisors is an integer number (38168305).

Almost surely, 2^151115233 is an apocalyptic number.

It is an amenable number.

151115233 is a deficient number, since it is larger than the sum of its proper divisors (1557987).

151115233 is an equidigital number, since it uses as much as digits as its factorization.

151115233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1557986.

The product of its digits is 450, while the sum is 22.

The square root of 151115233 is about 12292.8935975221. The cubic root of 151115233 is about 532.6428256115.

Adding to 151115233 its reverse (332511151), we get a palindrome (483626384).

The spelling of 151115233 in words is "one hundred fifty-one million, one hundred fifteen thousand, two hundred thirty-three".