1381432455 has 64 divisors (see below), whose sum is σ = 2654346240. Its totient is φ = 677635200.

The previous prime is 1381432441. The next prime is 1381432477. The reversal of 1381432455 is 5542341831.

It is not a de Polignac number, because 1381432455 - 2¹² = 1381428359 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 544540 + ... + 547070.

It is an arithmetic number, because the mean of its divisors is an integer number (41474160).

Almost surely, 2^1381432455 is an apocalyptic number.

1381432455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1381432455 is a deficient number, since it is larger than the sum of its proper divisors (1272913785).

1381432455 is a wasteful number, since it uses less digits than its factorization.

1381432455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2869 (or 2863 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 1381432455 is about 37167.6264375330. The cubic root of 1381432455 is about 1113.7213666980.

The spelling of 1381432455 in words is "one billion, three hundred eighty-one million, four hundred thirty-two thousand, four hundred fifty-five".