40231133 has 2 divisors, whose sum is σ = 40231134. Its totient is φ = 40231132.

The previous prime is 40231111. The next prime is 40231153. The reversal of 40231133 is 33113204.

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., 25775929 + 14455204 = 5077^2 + 3802^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40231133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40231153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20115566 + 20115567.

It is an arithmetic number, because the mean of its divisors is an integer number (20115567).

Almost surely, 2^40231133 is an apocalyptic number.

It is an amenable number.

40231133 is a deficient number, since it is larger than the sum of its proper divisors (1).

40231133 is an equidigital number, since it uses as much as digits as its factorization.

40231133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 40231133 is about 6342.8016680328. The cubic root of 40231133 is about 342.6526444112.

Adding to 40231133 its reverse (33113204), we get a palindrome (73344337).

The spelling of 40231133 in words is "forty million, two hundred thirty-one thousand, one hundred thirty-three".