133039503 has 10 divisors (see below), whose sum is σ = 198738144. Its totient is φ = 88692948.

The previous prime is 133039493. The next prime is 133039519. The reversal of 133039503 is 305930331.

It is not a de Polignac number, because 133039503 - 2¹⁴ = 133023119 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133039553) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 821151 + ... + 821312.

Almost surely, 2^133039503 is an apocalyptic number.

133039503 is a deficient number, since it is larger than the sum of its proper divisors (65698641).

133039503 is an equidigital number, since it uses as much as digits as its factorization.

133039503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1642475 (or 1642466 counting only the distinct ones).

The product of its (nonzero) digits is 3645, while the sum is 27.

The square root of 133039503 is about 11534.2751397736. The cubic root of 133039503 is about 510.4974039966.

Adding to 133039503 its reverse (305930331), we get a palindrome (438969834).

It can be divided in two parts, 1 and 33039503, that added together give a square (33039504 = 5748²).

The spelling of 133039503 in words is "one hundred thirty-three million, thirty-nine thousand, five hundred three".