151118023 has 4 divisors (see below), whose sum is σ = 172706320. Its totient is φ = 129529728.

The previous prime is 151118003. The next prime is 151118029. The reversal of 151118023 is 320811151.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-151118023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 151117985 and 151118003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151118029) 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 3 ways as a sum of consecutive naturals, for example, 10794138 + ... + 10794151.

It is an arithmetic number, because the mean of its divisors is an integer number (43176580).

Almost surely, 2^151118023 is an apocalyptic number.

151118023 is a deficient number, since it is larger than the sum of its proper divisors (21588297).

151118023 is an equidigital number, since it uses as much as digits as its factorization.

151118023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21588296.

The product of its (nonzero) digits is 240, while the sum is 22.

The square root of 151118023 is about 12293.0070771964. The cubic root of 151118023 is about 532.6461036052.

Adding to 151118023 its reverse (320811151), we get a palindrome (471929174).

The spelling of 151118023 in words is "one hundred fifty-one million, one hundred eighteen thousand, twenty-three".