152502281 has 2 divisors, whose sum is σ = 152502282. Its totient is φ = 152502280.

The previous prime is 152502241. The next prime is 152502283. The reversal of 152502281 is 182205251.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 108160000 + 44342281 = 10400^2 + 6659^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-152502281 is a prime.

It is a super-2 number, since 2×152502281² = 46513891420405922, which contains 22 as substring.

Together with 152502283, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 152502281.

It is not a weakly prime, because it can be changed into another prime (152502283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76251140 + 76251141.

It is an arithmetic number, because the mean of its divisors is an integer number (76251141).

Almost surely, 2^152502281 is an apocalyptic number.

It is an amenable number.

152502281 is a deficient number, since it is larger than the sum of its proper divisors (1).

152502281 is an equidigital number, since it uses as much as digits as its factorization.

152502281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1600, while the sum is 26.

The square root of 152502281 is about 12349.1813898736. The cubic root of 152502281 is about 534.2675287948.

The spelling of 152502281 in words is "one hundred fifty-two million, five hundred two thousand, two hundred eighty-one".