152021831 has 8 divisors (see below), whose sum is σ = 172332720. Its totient is φ = 132941952.

The previous prime is 152021791. The next prime is 152021839. The reversal of 152021831 is 138120251.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 152021831 - 2²⁶ = 84912967 is a prime.

It is a super-2 number, since 2×152021831² = 46221274201185122, 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 = 152021797 and 152021806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152021839) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 307490 + ... + 307983.

It is an arithmetic number, because the mean of its divisors is an integer number (21541590).

Almost surely, 2^152021831 is an apocalyptic number.

152021831 is a deficient number, since it is larger than the sum of its proper divisors (20310889).

152021831 is a wasteful number, since it uses less digits than its factorization.

152021831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615505.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 152021831 is about 12329.7133381113. The cubic root of 152021831 is about 533.7058784671.

The spelling of 152021831 in words is "one hundred fifty-two million, twenty-one thousand, eight hundred thirty-one".