912139450 has 12 divisors (see below), whose sum is σ = 1696579470. Its totient is φ = 364855760.

The previous prime is 912139447. The next prime is 912139483. The reversal of 912139450 is 54931219.

912139450 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 868539841 + 43599609 = 29471^2 + 6603^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9121345 + ... + 9121444.

Almost surely, 2^912139450 is an apocalyptic number.

912139450 is a deficient number, since it is larger than the sum of its proper divisors (784440020).

912139450 is a wasteful number, since it uses less digits than its factorization.

912139450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18242801 (or 18242796 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 912139450 is about 30201.6464782965. The cubic root of 912139450 is about 969.8109420041.

The spelling of 912139450 in words is "nine hundred twelve million, one hundred thirty-nine thousand, four hundred fifty".