1380120146 has 8 divisors (see below), whose sum is σ = 2191955580. Its totient is φ = 649468288.

The previous prime is 1380120107. The next prime is 1380120167. The reversal of 1380120146 is 6410210831.

It can be written as a sum of positive squares in 2 ways, for example, as 1302415921 + 77704225 = 36089^2 + 8815^2 .

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

It is a super-2 number, since 2×1380120146² = 3809463234790122632, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20295851 + ... + 20295918.

Almost surely, 2^1380120146 is an apocalyptic number.

1380120146 is a deficient number, since it is larger than the sum of its proper divisors (811835434).

1380120146 is a wasteful number, since it uses less digits than its factorization.

1380120146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40591788.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 1380120146 is about 37149.9683176177. The cubic root of 1380120146 is about 1113.3685904628.

Adding to 1380120146 its reverse (6410210831), we get a palindrome (7790330977).

The spelling of 1380120146 in words is "one billion, three hundred eighty million, one hundred twenty thousand, one hundred forty-six".