1380541181 has 8 divisors (see below), whose sum is σ = 1392568320. Its totient is φ = 1368532368.

The previous prime is 1380541171. The next prime is 1380541193. The reversal of 1380541181 is 1811450831.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1380541181 is a prime.

It is a super-2 number, since 2×1380541181² = 3811787904873749522, 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 (1380541171) 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, 177680 + ... + 185286.

It is an arithmetic number, because the mean of its divisors is an integer number (174071040).

Almost surely, 2^1380541181 is an apocalyptic number.

It is an amenable number.

1380541181 is a deficient number, since it is larger than the sum of its proper divisors (12027139).

1380541181 is a wasteful number, since it uses less digits than its factorization.

1380541181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9163.

The product of its (nonzero) digits is 3840, while the sum is 32.

The square root of 1380541181 is about 37155.6345794282. The cubic root of 1380541181 is about 1113.4817978732.

The spelling of 1380541181 in words is "one billion, three hundred eighty million, five hundred forty-one thousand, one hundred eighty-one".