912261121 has 4 divisors (see below), whose sum is σ = 951924672. Its totient is φ = 872597572.

The previous prime is 912261107. The next prime is 912261131. The reversal of 912261121 is 121162219.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 912261121 - 2¹⁵ = 912228353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (912261131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19831741 + ... + 19831786.

It is an arithmetic number, because the mean of its divisors is an integer number (237981168).

It is a Proth number, since it is equal to 435 ⋅ 2²¹ + 1 and 435 < 2²¹.

Almost surely, 2^912261121 is an apocalyptic number.

It is an amenable number.

912261121 is a deficient number, since it is larger than the sum of its proper divisors (39663551).

912261121 is a wasteful number, since it uses less digits than its factorization.

912261121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39663550.

The product of its digits is 432, while the sum is 25.

The square root of 912261121 is about 30203.6607218397. The cubic root of 912261121 is about 969.8540613688.

The spelling of 912261121 in words is "nine hundred twelve million, two hundred sixty-one thousand, one hundred twenty-one".