1381047530 has 64 divisors (see below), whose sum is σ = 2711273472. Its totient is φ = 504483840.

The previous prime is 1381047529. The next prime is 1381047559. The reversal of 1381047530 is 357401831.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1014050 + ... + 1015410.

It is an arithmetic number, because the mean of its divisors is an integer number (42363648).

Almost surely, 2^1381047530 is an apocalyptic number.

1381047530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1381047530 is a deficient number, since it is larger than the sum of its proper divisors (1330225942).

1381047530 is a wasteful number, since it uses less digits than its factorization.

1381047530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1559.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 1381047530 is about 37162.4478472557. The cubic root of 1381047530 is about 1113.6179139331.

The spelling of 1381047530 in words is "one billion, three hundred eighty-one million, forty-seven thousand, five hundred thirty".