1369980929 has 4 divisors (see below), whose sum is σ = 1403395140. Its totient is φ = 1336566720.

The previous prime is 1369980919. The next prime is 1369980973. The reversal of 1369980929 is 9290899631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9290899631 = 13 ⋅714684587.

It can be written as a sum of positive squares in 2 ways, for example, as 531994225 + 837986704 = 23065^2 + 28948^2 .

It is a cyclic number.

It is not a de Polignac number, because 1369980929 - 2⁸ = 1369980673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1369980919) 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, 16707044 + ... + 16707125.

It is an arithmetic number, because the mean of its divisors is an integer number (350848785).

Almost surely, 2^1369980929 is an apocalyptic number.

It is an amenable number.

1369980929 is a deficient number, since it is larger than the sum of its proper divisors (33414211).

1369980929 is an equidigital number, since it uses as much as digits as its factorization.

1369980929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33414210.

The product of its (nonzero) digits is 1889568, while the sum is 56.

The square root of 1369980929 is about 37013.2534236049. The cubic root of 1369980929 is about 1110.6353879185.

The spelling of 1369980929 in words is "one billion, three hundred sixty-nine million, nine hundred eighty thousand, nine hundred twenty-nine".