150842123 has 4 divisors (see below), whose sum is σ = 151399008. Its totient is φ = 150285240.

The previous prime is 150842093. The next prime is 150842149. The reversal of 150842123 is 321248051.

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-150842123 is a prime.

It is a super-2 number, since 2×150842123² = 45506692142294258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 150842092 and 150842101.

It is not an unprimeable number, because it can be changed into a prime (150842023) 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, 278036 + ... + 278577.

It is an arithmetic number, because the mean of its divisors is an integer number (37849752).

Almost surely, 2^150842123 is an apocalyptic number.

150842123 is a deficient number, since it is larger than the sum of its proper divisors (556885).

150842123 is an equidigital number, since it uses as much as digits as its factorization.

150842123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556884.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 150842123 is about 12281.7801234186. The cubic root of 150842123 is about 532.3217509739.

The spelling of 150842123 in words is "one hundred fifty million, eight hundred forty-two thousand, one hundred twenty-three".