133083247 has 4 divisors (see below), whose sum is σ = 145181736. Its totient is φ = 120984760.

The previous prime is 133083241. The next prime is 133083263. The reversal of 133083247 is 742380331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133083247 is a prime.

It is a super-2 number, since 2×133083247² = 35422301264126018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133083241) 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, 6049228 + ... + 6049249.

It is an arithmetic number, because the mean of its divisors is an integer number (36295434).

Almost surely, 2^133083247 is an apocalyptic number.

133083247 is a deficient number, since it is larger than the sum of its proper divisors (12098489).

133083247 is a wasteful number, since it uses less digits than its factorization.

133083247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12098488.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 133083247 is about 11536.1712452616. The cubic root of 133083247 is about 510.5533491628.

The spelling of 133083247 in words is "one hundred thirty-three million, eighty-three thousand, two hundred forty-seven".