2091256136 has 16 divisors (see below), whose sum is σ = 3921613440. Its totient is φ = 1045492560.

The previous prime is 2091256099. The next prime is 2091256151. The reversal of 2091256136 is 6316521902.

It is a junction number, because it is equal to n+sod(n) for n = 2091256096 and 2091256105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84101 + ... + 106091.

It is an arithmetic number, because the mean of its divisors is an integer number (245100840).

Almost surely, 2^2091256136 is an apocalyptic number.

It is an amenable number.

2091256136 is a deficient number, since it is larger than the sum of its proper divisors (1830357304).

2091256136 is a wasteful number, since it uses less digits than its factorization.

2091256136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33884 (or 33880 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 2091256136 is about 45730.2540557124. The cubic root of 2091256136 is about 1278.7993575456.

The spelling of 2091256136 in words is "two billion, ninety-one million, two hundred fifty-six thousand, one hundred thirty-six".