133531424077 has 2 divisors, whose sum is σ = 133531424078. Its totient is φ = 133531424076.

The previous prime is 133531424009. The next prime is 133531424107. The reversal of 133531424077 is 770424135331.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 104157234756 + 29374189321 = 322734^2 + 171389^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133531424077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133531424777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66765712038 + 66765712039.

It is an arithmetic number, because the mean of its divisors is an integer number (66765712039).

Almost surely, 2^133531424077 is an apocalyptic number.

It is an amenable number.

133531424077 is a deficient number, since it is larger than the sum of its proper divisors (1).

133531424077 is an equidigital number, since it uses as much as digits as its factorization.

133531424077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 211680, while the sum is 40.

The spelling of 133531424077 in words is "one hundred thirty-three billion, five hundred thirty-one million, four hundred twenty-four thousand, seventy-seven".