1380172146 has 8 divisors (see below), whose sum is σ = 2760344304. Its totient is φ = 460057380.

The previous prime is 1380172139. The next prime is 1380172207. The reversal of 1380172146 is 6412710831.

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

1380172146 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115014340 + ... + 115014351.

It is an arithmetic number, because the mean of its divisors is an integer number (345043038).

Almost surely, 2^1380172146 is an apocalyptic number.

1380172146 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1380172146 is a wasteful number, since it uses less digits than its factorization.

1380172146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230028696.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 1380172146 is about 37150.6681770328. The cubic root of 1380172146 is about 1113.3825734095.

Adding to 1380172146 its reverse (6412710831), we get a palindrome (7792882977).

The spelling of 1380172146 in words is "one billion, three hundred eighty million, one hundred seventy-two thousand, one hundred forty-six".