1361561830 has 8 divisors (see below), whose sum is σ = 2450811312. Its totient is φ = 544624728.

The previous prime is 1361561827. The next prime is 1361561833. The reversal of 1361561830 is 381651631.

It is an interprime number because it is at equal distance from previous prime (1361561827) and next prime (1361561833).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1361561833) 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, 68078082 + ... + 68078101.

It is an arithmetic number, because the mean of its divisors is an integer number (306351414).

Almost surely, 2^1361561830 is an apocalyptic number.

1361561830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1361561830 is a deficient number, since it is larger than the sum of its proper divisors (1089249482).

1361561830 is a wasteful number, since it uses less digits than its factorization.

1361561830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136156190.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 1361561830 is about 36899.3472842000. The cubic root of 1361561830 is about 1108.3556069669.

The spelling of 1361561830 in words is "one billion, three hundred sixty-one million, five hundred sixty-one thousand, eight hundred thirty".