1246199139 has 6 divisors (see below), whose sum is σ = 1800065436. Its totient is φ = 830799420.

The previous prime is 1246199131. The next prime is 1246199203. The reversal of 1246199139 is 9319916421.

1246199139 is a `hidden beast` number, since 1 + 24 + 619 + 9 + 1 + 3 + 9 = 666.

It is not a de Polignac number, because 1246199139 - 2³ = 1246199131 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1246199094 and 1246199103.

It is not an unprimeable number, because it can be changed into a prime (1246199131) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 69233277 + ... + 69233294.

It is an arithmetic number, because the mean of its divisors is an integer number (300010906).

Almost surely, 2^1246199139 is an apocalyptic number.

1246199139 is a deficient number, since it is larger than the sum of its proper divisors (553866297).

1246199139 is a wasteful number, since it uses less digits than its factorization.

1246199139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138466577 (or 138466574 counting only the distinct ones).

The product of its digits is 104976, while the sum is 45.

The square root of 1246199139 is about 35301.5458443395. The cubic root of 1246199139 is about 1076.1244089347.

The spelling of 1246199139 in words is "one billion, two hundred forty-six million, one hundred ninety-nine thousand, one hundred thirty-nine".