961425 has 18 divisors (see below), whose sum is σ = 1722422. Its totient is φ = 512640.

The previous prime is 961399. The next prime is 961427. The reversal of 961425 is 524169.

It can be written as a sum of positive squares in 3 ways, for example, as 16641 + 944784 = 129^2 + 972^2 .

It is not a de Polignac number, because 961425 - 2⁵ = 961393 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 961425.

It is not an unprimeable number, because it can be changed into a prime (961427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1912 + ... + 2361.

2⁹⁶¹⁴²⁵ is an apocalyptic number.

It is an amenable number.

961425 is a deficient number, since it is larger than the sum of its proper divisors (760997).

961425 is a wasteful number, since it uses less digits than its factorization.

961425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4289 (or 4281 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 961425 is about 980.5228197243. The cubic root of 961425 is about 98.6972692894.

It can be divided in two parts, 96 and 1425, that added together give a square (1521 = 39²).

The spelling of 961425 in words is "nine hundred sixty-one thousand, four hundred twenty-five".