151990 has 8 divisors (see below), whose sum is σ = 273600. Its totient is φ = 60792.

The previous prime is 151969. The next prime is 152003. The reversal of 151990 is 99151.

151990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-3 number, since 3×151990³ = 10533344776797000, which contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7590 + ... + 7609.

It is an arithmetic number, because the mean of its divisors is an integer number (34200).

2¹⁵¹⁹⁹⁰ is an apocalyptic number.

151990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

151990 is a deficient number, since it is larger than the sum of its proper divisors (121610).

151990 is a wasteful number, since it uses less digits than its factorization.

151990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15206.

The product of its (nonzero) digits is 405, while the sum is 25.

The square root of 151990 is about 389.8589488520. The cubic root of 151990 is about 53.3668625972.

The spelling of 151990 in words is "one hundred fifty-one thousand, nine hundred ninety".