499981500101 has 2 divisors, whose sum is σ = 499981500102. Its totient is φ = 499981500100.

The previous prime is 499981500091. The next prime is 499981500127. The reversal of 499981500101 is 101005189994.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 443682549025 + 56298951076 = 666095^2 + 237274^2 .

It is a cyclic number.

It is not a de Polignac number, because 499981500101 - 2³⁴ = 482801630917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (499981500131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249990750050 + 249990750051.

It is an arithmetic number, because the mean of its divisors is an integer number (249990750051).

Almost surely, 2^499981500101 is an apocalyptic number.

It is an amenable number.

499981500101 is a deficient number, since it is larger than the sum of its proper divisors (1).

499981500101 is an equidigital number, since it uses as much as digits as its factorization.

499981500101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 116640, while the sum is 47.

The spelling of 499981500101 in words is "four hundred ninety-nine billion, nine hundred eighty-one million, five hundred thousand, one hundred one".