1339891149 has 12 divisors (see below), whose sum is σ = 1804426208. Its totient is φ = 884396400.

The previous prime is 1339891141. The next prime is 1339891177. The reversal of 1339891149 is 9411989331.

It is not a de Polignac number, because 1339891149 - 2³ = 1339891141 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1339891098 and 1339891107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1339891141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8712 + ... + 52494.

Almost surely, 2^1339891149 is an apocalyptic number.

It is an amenable number.

1339891149 is a deficient number, since it is larger than the sum of its proper divisors (464535059).

1339891149 is an equidigital number, since it uses as much as digits as its factorization.

1339891149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43988 (or 43887 counting only the distinct ones).

The product of its digits is 209952, while the sum is 48.

The square root of 1339891149 is about 36604.5236138923. The cubic root of 1339891149 is about 1102.4439185587.

The spelling of 1339891149 in words is "one billion, three hundred thirty-nine million, eight hundred ninety-one thousand, one hundred forty-nine".