133623739 has 2 divisors, whose sum is σ = 133623740. Its totient is φ = 133623738.

The previous prime is 133623719. The next prime is 133623803. The reversal of 133623739 is 937326331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 133623739 - 2¹⁵ = 133590971 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 133623698 and 133623707.

It is not a weakly prime, because it can be changed into another prime (133623719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66811869 + 66811870.

It is an arithmetic number, because the mean of its divisors is an integer number (66811870).

Almost surely, 2^133623739 is an apocalyptic number.

133623739 is a deficient number, since it is larger than the sum of its proper divisors (1).

133623739 is an equidigital number, since it uses as much as digits as its factorization.

133623739 is an evil number, because the sum of its binary digits is even.

The product of its digits is 61236, while the sum is 37.

The square root of 133623739 is about 11559.5734782906. The cubic root of 133623739 is about 511.2435869777.

The spelling of 133623739 in words is "one hundred thirty-three million, six hundred twenty-three thousand, seven hundred thirty-nine".