1369700491 has 4 divisors (see below), whose sum is σ = 1383261984. Its totient is φ = 1356139000.

The previous prime is 1369700471. The next prime is 1369700513. The reversal of 1369700491 is 1940079631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1940079631 = 7 ⋅277154233.

It is a cyclic number.

It is not a de Polignac number, because 1369700491 - 2¹⁹ = 1369176203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1369700401) 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, 6780595 + ... + 6780796.

It is an arithmetic number, because the mean of its divisors is an integer number (345815496).

Almost surely, 2^1369700491 is an apocalyptic number.

1369700491 is a deficient number, since it is larger than the sum of its proper divisors (13561493).

1369700491 is a wasteful number, since it uses less digits than its factorization.

1369700491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13561492.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 1369700491 is about 37009.4648839996. The cubic root of 1369700491 is about 1110.5595996076.

The spelling of 1369700491 in words is "one billion, three hundred sixty-nine million, seven hundred thousand, four hundred ninety-one".