150243251 has 4 divisors (see below), whose sum is σ = 150338352. Its totient is φ = 150148152.

The previous prime is 150243239. The next prime is 150243253. The reversal of 150243251 is 152342051.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 152342051 = 5981 ⋅25471.

It is a cyclic number.

It is not a de Polignac number, because 150243251 - 2¹⁸ = 149981107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (150243253) 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, 45140 + ... + 48353.

It is an arithmetic number, because the mean of its divisors is an integer number (37584588).

Almost surely, 2^150243251 is an apocalyptic number.

150243251 is a deficient number, since it is larger than the sum of its proper divisors (95101).

150243251 is an equidigital number, since it uses as much as digits as its factorization.

150243251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95100.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 150243251 is about 12257.3753715875. The cubic root of 150243251 is about 531.6163436525.

Subtracting from 150243251 its product of nonzero digits (1200), we obtain a palindrome (150242051).

The spelling of 150243251 in words is "one hundred fifty million, two hundred forty-three thousand, two hundred fifty-one".