152214321 has 16 divisors (see below), whose sum is σ = 233339904. Its totient is φ = 86456784.

The previous prime is 152214319. The next prime is 152214323. The reversal of 152214321 is 123412251.

It is an interprime number because it is at equal distance from previous prime (152214319) and next prime (152214323).

It is not a de Polignac number, because 152214321 - 2¹ = 152214319 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (152214323) 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, 18195 + ... + 25208.

It is an arithmetic number, because the mean of its divisors is an integer number (14583744).

Almost surely, 2^152214321 is an apocalyptic number.

It is an amenable number.

152214321 is a deficient number, since it is larger than the sum of its proper divisors (81125583).

152214321 is a wasteful number, since it uses less digits than its factorization.

152214321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43580.

The product of its digits is 480, while the sum is 21.

The square root of 152214321 is about 12337.5168084992. The cubic root of 152214321 is about 533.9310428709.

Adding to 152214321 its reverse (123412251), we get a palindrome (275626572).

The spelling of 152214321 in words is "one hundred fifty-two million, two hundred fourteen thousand, three hundred twenty-one".