133151503 has 4 divisors (see below), whose sum is σ = 133646760. Its totient is φ = 132656248.

The previous prime is 133151401. The next prime is 133151509. The reversal of 133151503 is 305151331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 305151331 = 1109 ⋅275159.

It is a cyclic number.

It is not a de Polignac number, because 133151503 - 2²¹ = 131054351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133151509) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 247225 + ... + 247762.

It is an arithmetic number, because the mean of its divisors is an integer number (33411690).

Almost surely, 2^133151503 is an apocalyptic number.

133151503 is a deficient number, since it is larger than the sum of its proper divisors (495257).

133151503 is an equidigital number, since it uses as much as digits as its factorization.

133151503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495256.

The product of its (nonzero) digits is 675, while the sum is 22.

The square root of 133151503 is about 11539.1292132466. The cubic root of 133151503 is about 510.6406187834.

The spelling of 133151503 in words is "one hundred thirty-three million, one hundred fifty-one thousand, five hundred three".