152020389 has 4 divisors (see below), whose sum is σ = 202693856. Its totient is φ = 101346924.

The previous prime is 152020381. The next prime is 152020399. The reversal of 152020389 is 983020251.

It is a happy number.

152020389 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 152020389 - 2³ = 152020381 is a prime.

It is a super-2 number, since 2×152020389² = 46220397343422642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152020381) 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, 25336729 + ... + 25336734.

It is an arithmetic number, because the mean of its divisors is an integer number (50673464).

Almost surely, 2^152020389 is an apocalyptic number.

It is an amenable number.

152020389 is a deficient number, since it is larger than the sum of its proper divisors (50673467).

152020389 is an equidigital number, since it uses as much as digits as its factorization.

152020389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50673466.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 152020389 is about 12329.6548613495. The cubic root of 152020389 is about 533.7041909763.

The spelling of 152020389 in words is "one hundred fifty-two million, twenty thousand, three hundred eighty-nine".