7138503 has 16 divisors (see below), whose sum is σ = 10617600. Its totient is φ = 4740120.

The previous prime is 7138489. The next prime is 7138513. The reversal of 7138503 is 3058317.

It is not a de Polignac number, because 7138503 - 2¹⁴ = 7122119 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7138513) 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, 10998 + ... + 11628.

It is an arithmetic number, because the mean of its divisors is an integer number (663600).

Almost surely, 2^7138503 is an apocalyptic number.

7138503 is a deficient number, since it is larger than the sum of its proper divisors (3479097).

7138503 is a wasteful number, since it uses less digits than its factorization.

7138503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1059 (or 1053 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 7138503 is about 2671.7977094084. The cubic root of 7138503 is about 192.5465384754.

It can be divided in two parts, 713 and 8503, that added together give a square (9216 = 96²).

The spelling of 7138503 in words is "seven million, one hundred thirty-eight thousand, five hundred three".