8135949801 has 16 divisors (see below), whose sum is σ = 12399263744. Its totient is φ = 4648504464.

The previous prime is 8135949793. The next prime is 8135949803. The reversal of 8135949801 is 1089495318.

It is not a de Polignac number, because 8135949801 - 2³ = 8135949793 is a prime.

It is the 90200-th Hogben number.

It is not an unprimeable number, because it can be changed into a prime (8135949803) by changing a digit.

It is a nontrivial repunit in base 90199.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 175470 + ... + 216936.

It is an arithmetic number, because the mean of its divisors is an integer number (774953984).

Almost surely, 2^8135949801 is an apocalyptic number.

It is an amenable number.

8135949801 is a deficient number, since it is larger than the sum of its proper divisors (4263313943).

8135949801 is a wasteful number, since it uses less digits than its factorization.

8135949801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50820.

The product of its (nonzero) digits is 311040, while the sum is 48.

The square root of 8135949801 is about 90199.5000041575. The cubic root of 8135949801 is about 2011.2655743548.

The spelling of 8135949801 in words is "eight billion, one hundred thirty-five million, nine hundred forty-nine thousand, eight hundred one".