2106356253 has 16 divisors (see below), whose sum is σ = 2991934656. Its totient is φ = 1313521920.

The previous prime is 2106356249. The next prime is 2106356257. The reversal of 2106356253 is 3526536012.

It is an interprime number because it is at equal distance from previous prime (2106356249) and next prime (2106356257).

It is not a de Polignac number, because 2106356253 - 2² = 2106356249 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2106356257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118378 + ... + 135003.

It is an arithmetic number, because the mean of its divisors is an integer number (186995916).

Almost surely, 2^2106356253 is an apocalyptic number.

It is an amenable number.

2106356253 is a deficient number, since it is larger than the sum of its proper divisors (885578403).

2106356253 is a wasteful number, since it uses less digits than its factorization.

2106356253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253564.

The product of its (nonzero) digits is 32400, while the sum is 33.

The square root of 2106356253 is about 45895.0569560601. The cubic root of 2106356253 is about 1281.8698771424.

The spelling of 2106356253 in words is "two billion, one hundred six million, three hundred fifty-six thousand, two hundred fifty-three".