912149154225 has 27 divisors (see below), whose sum is σ = 1633786144939. Its totient is φ = 486471908400.

The previous prime is 912149154197. The next prime is 912149154269. The reversal of 912149154225 is 522451941219.

The square root of 912149154225 is 955065.

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

912149154225 is a `hidden beast` number, since 9 + 1 + 2 + 14 + 91 + 542 + 2 + 5 = 666.

It can be written as a sum of positive squares in only one way, i.e., 328373695521 + 583775458704 = 573039^2 + 764052^2 .

It is not a de Polignac number, because 912149154225 - 2¹⁷ = 912149023153 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 14294140 + ... + 14357810.

Almost surely, 2^912149154225 is an apocalyptic number.

912149154225 is the 955065-th square number.

912149154225 is the 477533-rd centered octagonal number.

It is an amenable number.

912149154225 is a deficient number, since it is larger than the sum of its proper divisors (721636990714).

912149154225 is an frugal number, since it uses more digits than its factorization.

912149154225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127358 (or 63679 counting only the distinct ones).

The product of its digits is 259200, while the sum is 45.

The spelling of 912149154225 in words is "nine hundred twelve billion, one hundred forty-nine million, one hundred fifty-four thousand, two hundred twenty-five".