905081140057 has 2 divisors, whose sum is σ = 905081140058. Its totient is φ = 905081140056.

The previous prime is 905081140009. The next prime is 905081140069. The reversal of 905081140057 is 750041180509.

It is a happy number.

905081140057 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 902707111881 + 2374028176 = 950109^2 + 48724^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-905081140057 is a prime.

It is not a weakly prime, because it can be changed into another prime (905081180057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 452540570028 + 452540570029.

It is an arithmetic number, because the mean of its divisors is an integer number (452540570029).

Almost surely, 2^905081140057 is an apocalyptic number.

It is an amenable number.

905081140057 is a deficient number, since it is larger than the sum of its proper divisors (1).

905081140057 is an equidigital number, since it uses as much as digits as its factorization.

905081140057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 50400, while the sum is 40.

The spelling of 905081140057 in words is "nine hundred five billion, eighty-one million, one hundred forty thousand, fifty-seven".