1399546503 has 12 divisors (see below), whose sum is σ = 2031728400. Its totient is φ = 928341216.

The previous prime is 1399546469. The next prime is 1399546543. The reversal of 1399546503 is 3056459931.

1399546503 is a `hidden beast` number, since 1 + 3 + 99 + 54 + 6 + 503 = 666.

It is not a de Polignac number, because 1399546503 - 2¹⁰ = 1399545479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1399546543) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 388926 + ... + 392507.

It is an arithmetic number, because the mean of its divisors is an integer number (169310700).

Almost surely, 2^1399546503 is an apocalyptic number.

1399546503 is a deficient number, since it is larger than the sum of its proper divisors (632181897).

1399546503 is a wasteful number, since it uses less digits than its factorization.

1399546503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781638 (or 781635 counting only the distinct ones).

The product of its (nonzero) digits is 437400, while the sum is 45.

The square root of 1399546503 is about 37410.5132683314. The cubic root of 1399546503 is about 1118.5681380654.

The spelling of 1399546503 in words is "one billion, three hundred ninety-nine million, five hundred forty-six thousand, five hundred three".