1391370041 has 16 divisors (see below), whose sum is σ = 1437596160. Its totient is φ = 1346155200.

The previous prime is 1391370011. The next prime is 1391370053. The reversal of 1391370041 is 1400731931.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1391370041 - 2¹⁴ = 1391353657 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1391369986 and 1391370013.

It is not an unprimeable number, because it can be changed into a prime (1391370011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 820991 + ... + 822683.

It is an arithmetic number, because the mean of its divisors is an integer number (89849760).

Almost surely, 2^1391370041 is an apocalyptic number.

It is an amenable number.

1391370041 is a deficient number, since it is larger than the sum of its proper divisors (46226119).

1391370041 is a wasteful number, since it uses less digits than its factorization.

1391370041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1976.

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 1391370041 is about 37301.0729202258. The cubic root of 1391370041 is about 1116.3855742271.

The spelling of 1391370041 in words is "one billion, three hundred ninety-one million, three hundred seventy thousand, forty-one".