13139763 has 16 divisors (see below), whose sum is σ = 21563136. Its totient is φ = 6930720.

The previous prime is 13139741. The next prime is 13139767. The reversal of 13139763 is 36793131.

It is not a de Polignac number, because 13139763 - 2⁹ = 13139251 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13139767) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23793 + ... + 24338.

It is an arithmetic number, because the mean of its divisors is an integer number (1347696).

Almost surely, 2^13139763 is an apocalyptic number.

13139763 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13139763 is a deficient number, since it is larger than the sum of its proper divisors (8423373).

13139763 is a wasteful number, since it uses less digits than its factorization.

13139763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48154.

The product of its digits is 10206, while the sum is 33.

The square root of 13139763 is about 3624.8811014984. The cubic root of 13139763 is about 235.9731069135.

The spelling of 13139763 in words is "thirteen million, one hundred thirty-nine thousand, seven hundred sixty-three".