1349620661 has 8 divisors (see below), whose sum is σ = 1381897440. Its totient is φ = 1317384432.

The previous prime is 1349620637. The next prime is 1349620691. The reversal of 1349620661 is 1660269431.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1349620661 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 (1349620691) 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, 63530 + ... + 82068.

It is an arithmetic number, because the mean of its divisors is an integer number (172737180).

Almost surely, 2^1349620661 is an apocalyptic number.

It is an amenable number.

1349620661 is a deficient number, since it is larger than the sum of its proper divisors (32276779).

1349620661 is a wasteful number, since it uses less digits than its factorization.

1349620661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20275.

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 1349620661 is about 36737.1836291243. The cubic root of 1349620661 is about 1105.1059216114.

The spelling of 1349620661 in words is "one billion, three hundred forty-nine million, six hundred twenty thousand, six hundred sixty-one".