1373283661 has 8 divisors (see below), whose sum is σ = 1421107200. Its totient is φ = 1325491440.

The previous prime is 1373283641. The next prime is 1373283673. The reversal of 1373283661 is 1663823731.

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 1373283661 - 2⁷ = 1373283533 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 (1373283631) 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, 113460 + ... + 124978.

It is an arithmetic number, because the mean of its divisors is an integer number (177638400).

Almost surely, 2^1373283661 is an apocalyptic number.

It is an amenable number.

1373283661 is a deficient number, since it is larger than the sum of its proper divisors (47823539).

1373283661 is a wasteful number, since it uses less digits than its factorization.

1373283661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15659.

The product of its digits is 108864, while the sum is 40.

The square root of 1373283661 is about 37057.8420985356. The cubic root of 1373283661 is about 1111.5271733943.

The spelling of 1373283661 in words is "one billion, three hundred seventy-three million, two hundred eighty-three thousand, six hundred sixty-one".