151215323 has 16 divisors (see below), whose sum is σ = 186724800. Its totient is φ = 121984128.

The previous prime is 151215301. The next prime is 151215331. The reversal of 151215323 is 323512151.

It is a happy number.

151215323 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 151215323 - 2¹⁰ = 151214299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (151212323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7136 + ... + 18797.

It is an arithmetic number, because the mean of its divisors is an integer number (11670300).

Almost surely, 2^151215323 is an apocalyptic number.

151215323 is a deficient number, since it is larger than the sum of its proper divisors (35509477).

151215323 is an equidigital number, since it uses as much as digits as its factorization.

151215323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25971 (or 25957 counting only the distinct ones).

The product of its digits is 900, while the sum is 23.

The square root of 151215323 is about 12296.9639749005. The cubic root of 151215323 is about 532.7603969364.

Adding to 151215323 its reverse (323512151), we get a palindrome (474727474).

The spelling of 151215323 in words is "one hundred fifty-one million, two hundred fifteen thousand, three hundred twenty-three".