215234151 has 16 divisors (see below), whose sum is σ = 315843840. Its totient is φ = 129288320.

The previous prime is 215234141. The next prime is 215234171. The reversal of 215234151 is 151432512.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 215234151 - 2⁵ = 215234119 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215234101) 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, 25131 + ... + 32588.

It is an arithmetic number, because the mean of its divisors is an integer number (19740240).

Almost surely, 2^215234151 is an apocalyptic number.

215234151 is a deficient number, since it is larger than the sum of its proper divisors (100609689).

215234151 is a wasteful number, since it uses less digits than its factorization.

215234151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57846.

The product of its digits is 1200, while the sum is 24.

The square root of 215234151 is about 14670.8606087032. The cubic root of 215234151 is about 599.2900408168.

Adding to 215234151 its reverse (151432512), we get a palindrome (366666663).

The spelling of 215234151 in words is "two hundred fifteen million, two hundred thirty-four thousand, one hundred fifty-one".