133445579 has 2 divisors, whose sum is σ = 133445580. Its totient is φ = 133445578.

The previous prime is 133445567. The next prime is 133445591. The reversal of 133445579 is 975544331.

It is a balanced prime because it is at equal distance from previous prime (133445567) and next prime (133445591).

It is a cyclic number.

It is not a de Polignac number, because 133445579 - 2¹⁶ = 133380043 is a prime.

It is a Chen prime.

It is a plaindrome in base 10.

It is not a weakly prime, because it can be changed into another prime (133445509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66722789 + 66722790.

It is an arithmetic number, because the mean of its divisors is an integer number (66722790).

Almost surely, 2^133445579 is an apocalyptic number.

133445579 is a deficient number, since it is larger than the sum of its proper divisors (1).

133445579 is an equidigital number, since it uses as much as digits as its factorization.

133445579 is an evil number, because the sum of its binary digits is even.

The product of its digits is 226800, while the sum is 41.

The square root of 133445579 is about 11551.8647412442. The cubic root of 133445579 is about 511.0162729080.

The spelling of 133445579 in words is "one hundred thirty-three million, four hundred forty-five thousand, five hundred seventy-nine".