133531424009 has 2 divisors, whose sum is σ = 133531424010. Its totient is φ = 133531424008.

The previous prime is 133531423913. The next prime is 133531424077. The reversal of 133531424009 is 900424135331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 126597198025 + 6934225984 = 355805^2 + 83272^2 .

It is a cyclic number.

It is not a de Polignac number, because 133531424009 - 2¹⁶ = 133531358473 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 133531424009.

It is not a weakly prime, because it can be changed into another prime (133530424009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66765712004 + 66765712005.

It is an arithmetic number, because the mean of its divisors is an integer number (66765712005).

Almost surely, 2^133531424009 is an apocalyptic number.

It is an amenable number.

133531424009 is a deficient number, since it is larger than the sum of its proper divisors (1).

133531424009 is an equidigital number, since it uses as much as digits as its factorization.

133531424009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 35.

The spelling of 133531424009 in words is "one hundred thirty-three billion, five hundred thirty-one million, four hundred twenty-four thousand, nine".