1391459050 has 12 divisors (see below), whose sum is σ = 2588113926. Its totient is φ = 556583600.

The previous prime is 1391459029. The next prime is 1391459057. The reversal of 1391459050 is 509541931.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 938748321 + 452710729 = 30639^2 + 21277^2 .

It is not an unprimeable number, because it can be changed into a prime (1391459057) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13914541 + ... + 13914640.

Almost surely, 2^1391459050 is an apocalyptic number.

1391459050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1391459050 is a deficient number, since it is larger than the sum of its proper divisors (1196654876).

1391459050 is a wasteful number, since it uses less digits than its factorization.

1391459050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27829193 (or 27829188 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 37.

The square root of 1391459050 is about 37302.2660169593. The cubic root of 1391459050 is about 1116.4093795993.

The spelling of 1391459050 in words is "one billion, three hundred ninety-one million, four hundred fifty-nine thousand, fifty".