912123225 has 72 divisors (see below), whose sum is σ = 1820222040. Its totient is φ = 433520640.

The previous prime is 912123203. The next prime is 912123229. The reversal of 912123225 is 522321219.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 166177881 + 745945344 = 12891^2 + 27312^2 .

It is not a de Polignac number, because 912123225 - 2¹⁵ = 912090457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (912123229) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 79449 + ... + 90201.

Almost surely, 2^912123225 is an apocalyptic number.

It is an amenable number.

912123225 is a deficient number, since it is larger than the sum of its proper divisors (908098815).

912123225 is a wasteful number, since it uses less digits than its factorization.

912123225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10811 (or 10803 counting only the distinct ones).

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

The square root of 912123225 is about 30201.3778659186. The cubic root of 912123225 is about 969.8051916860.

The spelling of 912123225 in words is "nine hundred twelve million, one hundred twenty-three thousand, two hundred twenty-five".