1361801837 has 8 divisors (see below), whose sum is σ = 1488830112. Its totient is φ = 1235311600.

The previous prime is 1361801809. The next prime is 1361801843. The reversal of 1361801837 is 7381081631.

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 1361801837 - 2⁶ = 1361801773 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1361801837.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1361801897) 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, 129203 + ... + 139344.

It is an arithmetic number, because the mean of its divisors is an integer number (186103764).

Almost surely, 2^1361801837 is an apocalyptic number.

It is an amenable number.

1361801837 is a deficient number, since it is larger than the sum of its proper divisors (127028275).

1361801837 is a wasteful number, since it uses less digits than its factorization.

1361801837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269019.

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 1361801837 is about 36902.5993257928. The cubic root of 1361801837 is about 1108.4207276417.

The spelling of 1361801837 in words is "one billion, three hundred sixty-one million, eight hundred one thousand, eight hundred thirty-seven".