100542246457 has 2 divisors, whose sum is σ = 100542246458. Its totient is φ = 100542246456.

The previous prime is 100542246421. The next prime is 100542246473. The reversal of 100542246457 is 754642245001.

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., 53893158201 + 46649088256 = 232149^2 + 215984^2 .

It is an emirp because it is prime and its reverse (754642245001) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100542246457 is a prime.

It is not a weakly prime, because it can be changed into another prime (100542246757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50271123228 + 50271123229.

It is an arithmetic number, because the mean of its divisors is an integer number (50271123229).

Almost surely, 2^100542246457 is an apocalyptic number.

It is an amenable number.

100542246457 is a deficient number, since it is larger than the sum of its proper divisors (1).

100542246457 is an equidigital number, since it uses as much as digits as its factorization.

100542246457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 268800, while the sum is 40.

The spelling of 100542246457 in words is "one hundred billion, five hundred forty-two million, two hundred forty-six thousand, four hundred fifty-seven".