2136749243 has 8 divisors (see below), whose sum is σ = 2234628000. Its totient is φ = 2039285248.

The previous prime is 2136749239. The next prime is 2136749257. The reversal of 2136749243 is 3429476312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2136749243 - 2² = 2136749239 is a prime.

It is a super-2 number, since 2×2136749243² = 9131394654922146098, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2136749243.

It is not an unprimeable number, because it can be changed into a prime (2136749273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93128 + ... + 113781.

It is an arithmetic number, because the mean of its divisors is an integer number (279328500).

Almost surely, 2^2136749243 is an apocalyptic number.

2136749243 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2136749243 is a deficient number, since it is larger than the sum of its proper divisors (97878757).

2136749243 is a wasteful number, since it uses less digits than its factorization.

2136749243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207381.

The product of its digits is 217728, while the sum is 41.

The square root of 2136749243 is about 46224.9850513767. The cubic root of 2136749243 is about 1288.0059015184.

The spelling of 2136749243 in words is "two billion, one hundred thirty-six million, seven hundred forty-nine thousand, two hundred forty-three".