150557243 has 4 divisors (see below), whose sum is σ = 151129968. Its totient is φ = 149984520.

The previous prime is 150557237. The next prime is 150557291. The reversal of 150557243 is 342755051.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 342755051 = 151 ⋅2269901.

It is a cyclic number.

It is not a de Polignac number, because 150557243 - 2⁴ = 150557227 is a prime.

It is a super-2 number, since 2×150557243² = 45334966839522098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (150557213) 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, 285968 + ... + 286493.

It is an arithmetic number, because the mean of its divisors is an integer number (37782492).

Almost surely, 2^150557243 is an apocalyptic number.

150557243 is a deficient number, since it is larger than the sum of its proper divisors (572725).

150557243 is an equidigital number, since it uses as much as digits as its factorization.

150557243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572724.

The product of its (nonzero) digits is 21000, while the sum is 32.

The square root of 150557243 is about 12270.1769750888. The cubic root of 150557243 is about 531.9864260109.

The spelling of 150557243 in words is "one hundred fifty million, five hundred fifty-seven thousand, two hundred forty-three".