1401458317 has 4 divisors (see below), whose sum is σ = 1601666656. Its totient is φ = 1201249980.

The previous prime is 1401458309. The next prime is 1401458339. The reversal of 1401458317 is 7138541041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7138541041 = 79 ⋅90361279.

It is not a de Polignac number, because 1401458317 - 2³ = 1401458309 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 (1401458117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100104159 + ... + 100104172.

It is an arithmetic number, because the mean of its divisors is an integer number (400416664).

Almost surely, 2^1401458317 is an apocalyptic number.

It is an amenable number.

1401458317 is a deficient number, since it is larger than the sum of its proper divisors (200208339).

1401458317 is an equidigital number, since it uses as much as digits as its factorization.

1401458317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200208338.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 1401458317 is about 37436.0563761730. The cubic root of 1401458317 is about 1119.0772365996.

Adding to 1401458317 its reverse (7138541041), we get a palindrome (8539999358).

The spelling of 1401458317 in words is "one billion, four hundred one million, four hundred fifty-eight thousand, three hundred seventeen".