1380913997 has 8 divisors (see below), whose sum is σ = 1474465344. Its totient is φ = 1290155328.

The previous prime is 1380913991. The next prime is 1380914009. The reversal of 1380913997 is 7993190831.

It is a happy number.

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 1380913997 - 2¹⁴ = 1380897613 is a prime.

It is a super-2 number, since 2×1380913997² = 3813846934221032018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1380913991) 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, 697148 + ... + 699125.

It is an arithmetic number, because the mean of its divisors is an integer number (184308168).

Almost surely, 2^1380913997 is an apocalyptic number.

It is an amenable number.

1380913997 is a deficient number, since it is larger than the sum of its proper divisors (93551347).

1380913997 is a wasteful number, since it uses less digits than its factorization.

1380913997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1396339.

The product of its (nonzero) digits is 367416, while the sum is 50.

The square root of 1380913997 is about 37160.6511918185. The cubic root of 1380913997 is about 1113.5820210014.

The spelling of 1380913997 in words is "one billion, three hundred eighty million, nine hundred thirteen thousand, nine hundred ninety-seven".