152821290 has 16 divisors (see below), whose sum is σ = 366771168. Its totient is φ = 40752336.

The previous prime is 152821261. The next prime is 152821297. The reversal of 152821290 is 92128251.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 5094043 = 152821290 / (1 + 5 + 2 + 8 + 2 + 1 + 2 + 9 + 0).

It is not an unprimeable number, because it can be changed into a prime (152821297) 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, 2546992 + ... + 2547051.

It is an arithmetic number, because the mean of its divisors is an integer number (22923198).

Almost surely, 2^152821290 is an apocalyptic number.

152821290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

152821290 is an abundant number, since it is smaller than the sum of its proper divisors (213949878).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

152821290 is a wasteful number, since it uses less digits than its factorization.

152821290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5094053.

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 152821290 is about 12362.0908425719. The cubic root of 152821290 is about 534.6398017989.

The spelling of 152821290 in words is "one hundred fifty-two million, eight hundred twenty-one thousand, two hundred ninety".