1380542747 has 8 divisors (see below), whose sum is σ = 1428848640. Its totient is φ = 1332472680.

The previous prime is 1380542719. The next prime is 1380542773. The reversal of 1380542747 is 7472450831.

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 1380542747 - 2⁸ = 1380542491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1380548747) 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, 47003 + ... + 70500.

It is an arithmetic number, because the mean of its divisors is an integer number (178606080).

Almost surely, 2^1380542747 is an apocalyptic number.

1380542747 is a deficient number, since it is larger than the sum of its proper divisors (48305893).

1380542747 is a wasteful number, since it uses less digits than its factorization.

1380542747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117913.

The product of its (nonzero) digits is 188160, while the sum is 41.

The square root of 1380542747 is about 37155.6556529420. The cubic root of 1380542747 is about 1113.4822188945.

The spelling of 1380542747 in words is "one billion, three hundred eighty million, five hundred forty-two thousand, seven hundred forty-seven".