151389 has 24 divisors (see below), whose sum is σ = 262080. Its totient is φ = 85536.
The previous prime is 151381. The next prime is 151391. The reversal of 151389 is 983151.
It is not a de Polignac number, because 151389 - 23 = 151381 is a prime.
It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a Curzon number.
151389 is a lucky number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (151381) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1657 + ... + 1745.
It is an arithmetic number, because the mean of its divisors is an integer number (10920).
2151389 is an apocalyptic number.
It is an amenable number.
151389 is a deficient number, since it is larger than the sum of its proper divisors (110691).
151389 is an frugal number, since it uses more digits than its factorization.
151389 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 111 (or 99 counting only the distinct ones).
The product of its digits is 1080, while the sum is 27.
The square root of 151389 is about 389.0873937819. The cubic root of 151389 is about 53.2964284620.
The spelling of 151389 in words is "one hundred fifty-one thousand, three hundred eighty-nine".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.069 sec. • engine limits •