961930225 has 9 divisors (see below), whose sum is σ = 1192985803. Its totient is φ = 769420120.

The previous prime is 961930213. The next prime is 961930237. The reversal of 961930225 is 522039169.

The square root of 961930225 is 31015.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (961930213) and next prime (961930237).

It can be written as a sum of positive squares in only one way, i.e., 346294881 + 615635344 = 18609^2 + 24812^2 .

It is not a de Polignac number, because 961930225 - 2¹⁹ = 961405937 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 151974 + ... + 158176.

Almost surely, 2^961930225 is an apocalyptic number.

961930225 is the 31015-th square number.

961930225 is the 15508-th centered octagonal number.

It is an amenable number.

961930225 is a deficient number, since it is larger than the sum of its proper divisors (231055578).

961930225 is an frugal number, since it uses more digits than its factorization.

961930225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12416 (or 6208 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 37.

The cubic root of 961930225 is about 987.1455460234.

The spelling of 961930225 in words is "nine hundred sixty-one million, nine hundred thirty thousand, two hundred twenty-five".