151023 has 4 divisors (see below), whose sum is σ = 201368. Its totient is φ = 100680.

The previous prime is 151013. The next prime is 151027. The reversal of 151023 is 320151.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 151023 - 2⁴ = 151007 is a prime.

It is a super-3 number, since 3×151023³ = 10333573525947501, which contains 333 as substring.

It is a D-number.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151027) 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, 25168 + ... + 25173.

It is an arithmetic number, because the mean of its divisors is an integer number (50342).

2¹⁵¹⁰²³ is an apocalyptic number.

151023 is a deficient number, since it is larger than the sum of its proper divisors (50345).

151023 is an equidigital number, since it uses as much as digits as its factorization.

151023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50344.

The product of its (nonzero) digits is 30, while the sum is 12.

The square root of 151023 is about 388.6167778159. The cubic root of 151023 is about 53.2534437589.

Adding to 151023 its reverse (320151), we get a palindrome (471174).

The spelling of 151023 in words is "one hundred fifty-one thousand, twenty-three".