152533639 has 4 divisors (see below), whose sum is σ = 161506224. Its totient is φ = 143561056.

The previous prime is 152533621. The next prime is 152533643. The reversal of 152533639 is 936335251.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 152533639 - 2¹³ = 152525447 is a prime.

It is a super-2 number, since 2×152533639² = 46533022053164642, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 152533598 and 152533607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152533679) 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, 4486267 + ... + 4486300.

It is an arithmetic number, because the mean of its divisors is an integer number (40376556).

Almost surely, 2^152533639 is an apocalyptic number.

152533639 is a deficient number, since it is larger than the sum of its proper divisors (8972585).

152533639 is an equidigital number, since it uses as much as digits as its factorization.

152533639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8972584.

The product of its digits is 72900, while the sum is 37.

The square root of 152533639 is about 12350.4509634264. The cubic root of 152533639 is about 534.3041455433.

The spelling of 152533639 in words is "one hundred fifty-two million, five hundred thirty-three thousand, six hundred thirty-nine".