152120531 has 2 divisors, whose sum is σ = 152120532. Its totient is φ = 152120530.

The previous prime is 152120513. The next prime is 152120543. The reversal of 152120531 is 135021251.

It is a happy number.

Together with previous prime (152120513) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-152120531 is a prime.

It is a super-2 number, since 2×152120531² = 46281311903443922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (152120561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76060265 + 76060266.

It is an arithmetic number, because the mean of its divisors is an integer number (76060266).

Almost surely, 2^152120531 is an apocalyptic number.

152120531 is a deficient number, since it is larger than the sum of its proper divisors (1).

152120531 is an equidigital number, since it uses as much as digits as its factorization.

152120531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 152120531 is about 12333.7152148086. The cubic root of 152120531 is about 533.8213561233.

Adding to 152120531 its reverse (135021251), we get a palindrome (287141782).

The spelling of 152120531 in words is "one hundred fifty-two million, one hundred twenty thousand, five hundred thirty-one".