133023479 has 2 divisors, whose sum is σ = 133023480. Its totient is φ = 133023478.

The previous prime is 133023437. The next prime is 133023571. The reversal of 133023479 is 974320331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 133023479 - 2¹⁶ = 132957943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133023179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66511739 + 66511740.

It is an arithmetic number, because the mean of its divisors is an integer number (66511740).

Almost surely, 2^133023479 is an apocalyptic number.

133023479 is a deficient number, since it is larger than the sum of its proper divisors (1).

133023479 is an equidigital number, since it uses as much as digits as its factorization.

133023479 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 32.

The square root of 133023479 is about 11533.5804934981. The cubic root of 133023479 is about 510.4769074807.

The spelling of 133023479 in words is "one hundred thirty-three million, twenty-three thousand, four hundred seventy-nine".