152529139 has 4 divisors (see below), whose sum is σ = 174319024. Its totient is φ = 130739256.

The previous prime is 152529137. The next prime is 152529173. The reversal of 152529139 is 931925251.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 931925251 = 223 ⋅4179037.

It is a cyclic number.

It is not a de Polignac number, because 152529139 - 2¹ = 152529137 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 152529098 and 152529107.

It is not an unprimeable number, because it can be changed into a prime (152529137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10894932 + ... + 10894945.

It is an arithmetic number, because the mean of its divisors is an integer number (43579756).

Almost surely, 2^152529139 is an apocalyptic number.

152529139 is a deficient number, since it is larger than the sum of its proper divisors (21789885).

152529139 is an equidigital number, since it uses as much as digits as its factorization.

152529139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21789884.

The product of its digits is 24300, while the sum is 37.

The square root of 152529139 is about 12350.2687825002. The cubic root of 152529139 is about 534.2988912000.

The spelling of 152529139 in words is "one hundred fifty-two million, five hundred twenty-nine thousand, one hundred thirty-nine".