152622251 has 4 divisors (see below), whose sum is σ = 152738592. Its totient is φ = 152505912.

The previous prime is 152622221. The next prime is 152622263. The reversal of 152622251 is 152226251.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 152226251 = 37 ⋅4114223.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-152622251 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 152622251.

It is not an unprimeable number, because it can be changed into a prime (152622221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56180 + ... + 58833.

It is an arithmetic number, because the mean of its divisors is an integer number (38184648).

Almost surely, 2^152622251 is an apocalyptic number.

152622251 is a deficient number, since it is larger than the sum of its proper divisors (116341).

152622251 is a wasteful number, since it uses less digits than its factorization.

152622251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116340.

The product of its digits is 2400, while the sum is 26.

The square root of 152622251 is about 12354.0378419365. The cubic root of 152622251 is about 534.4075906893.

The spelling of 152622251 in words is "one hundred fifty-two million, six hundred twenty-two thousand, two hundred fifty-one".