1361770906 has 8 divisors (see below), whose sum is σ = 2044032660. Its totient is φ = 680426688.

The previous prime is 1361770897. The next prime is 1361770909. The reversal of 1361770906 is 6090771631.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1245454681 + 116316225 = 35291^2 + 10785^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1361770909) 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, 225661 + ... + 231616.

Almost surely, 2^1361770906 is an apocalyptic number.

1361770906 is a deficient number, since it is larger than the sum of its proper divisors (682261754).

1361770906 is a wasteful number, since it uses less digits than its factorization.

1361770906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458768.

The product of its (nonzero) digits is 47628, while the sum is 40.

The square root of 1361770906 is about 36902.1802336935. The cubic root of 1361770906 is about 1108.4123356177.

The spelling of 1361770906 in words is "one billion, three hundred sixty-one million, seven hundred seventy thousand, nine hundred six".