1013400191 has 8 divisors (see below), whose sum is σ = 1025576640. Its totient is φ = 1001241472.

The previous prime is 1013400173. The next prime is 1013400233. The reversal of 1013400191 is 1910043101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1013400191 - 2⁶ = 1013400127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1013400491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137291 + ... + 144483.

It is an arithmetic number, because the mean of its divisors is an integer number (128197080).

Almost surely, 2^1013400191 is an apocalyptic number.

1013400191 is a deficient number, since it is larger than the sum of its proper divisors (12176449).

1013400191 is an equidigital number, since it uses as much as digits as its factorization.

1013400191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8865.

The product of its (nonzero) digits is 108, while the sum is 20.

The square root of 1013400191 is about 31833.9471476598. The cubic root of 1013400191 is about 1004.4469258708.

Adding to 1013400191 its reverse (1910043101), we get a palindrome (2923443292).

The spelling of 1013400191 in words is "one billion, thirteen million, four hundred thousand, one hundred ninety-one".