2117542351 has 8 divisors (see below), whose sum is σ = 2127906144. Its totient is φ = 2107200480.

The previous prime is 2117542333. The next prime is 2117542363. The reversal of 2117542351 is 1532457112.

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

It is a cyclic number.

It is not a de Polignac number, because 2117542351 - 2¹⁷ = 2117411279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2117542331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 208041 + ... + 217981.

It is an arithmetic number, because the mean of its divisors is an integer number (265988268).

Almost surely, 2^2117542351 is an apocalyptic number.

2117542351 is a deficient number, since it is larger than the sum of its proper divisors (10363793).

2117542351 is an equidigital number, since it uses as much as digits as its factorization.

2117542351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10961.

The product of its digits is 8400, while the sum is 31.

The square root of 2117542351 is about 46016.7616309536. The cubic root of 2117542351 is about 1284.1350548038.

Adding to 2117542351 its reverse (1532457112), we get a palindrome (3649999463).

It can be divided in two parts, 21175 and 42351, that multiplied together give a triangular number (896782425 = T₄₂₃₅₀).

The spelling of 2117542351 in words is "two billion, one hundred seventeen million, five hundred forty-two thousand, three hundred fifty-one".