151415233 has 4 divisors (see below), whose sum is σ = 157998528. Its totient is φ = 144831940.

The previous prime is 151415221. The next prime is 151415249. The reversal of 151415233 is 332514151.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 332514151 = 23 ⋅14457137.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-151415233 is a prime.

It is a super-5 number, since 5×151415233⁵ (a number of 42 digits) contains 55555 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 151415198 and 151415207.

It is not an unprimeable number, because it can be changed into a prime (151415203) 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, 3291613 + ... + 3291658.

It is an arithmetic number, because the mean of its divisors is an integer number (39499632).

Almost surely, 2^151415233 is an apocalyptic number.

It is an amenable number.

151415233 is a deficient number, since it is larger than the sum of its proper divisors (6583295).

151415233 is an equidigital number, since it uses as much as digits as its factorization.

151415233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6583294.

The product of its digits is 1800, while the sum is 25.

The square root of 151415233 is about 12305.0897192991. The cubic root of 151415233 is about 532.9950672279.

Adding to 151415233 its reverse (332514151), we get a palindrome (483929384).

The spelling of 151415233 in words is "one hundred fifty-one million, four hundred fifteen thousand, two hundred thirty-three".