961500203 has 4 divisors (see below), whose sum is σ = 966057288. Its totient is φ = 956943120.

The previous prime is 961500179. The next prime is 961500209. The reversal of 961500203 is 302005169.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 302005169 = 9391 ⋅32159.

It is a cyclic number.

It is not a de Polignac number, because 961500203 - 2⁶ = 961500139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (961500209) 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, 2278226 + ... + 2278647.

It is an arithmetic number, because the mean of its divisors is an integer number (241514322).

Almost surely, 2^961500203 is an apocalyptic number.

961500203 is a deficient number, since it is larger than the sum of its proper divisors (4557085).

961500203 is a wasteful number, since it uses less digits than its factorization.

961500203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4557084.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 961500203 is about 31008.0667407692. The cubic root of 961500203 is about 986.9984260064.

The spelling of 961500203 in words is "nine hundred sixty-one million, five hundred thousand, two hundred three".