2151708349 has 8 divisors (see below), whose sum is σ = 2459508480. Its totient is φ = 1844011536.

The previous prime is 2151708329. The next prime is 2151708373. The reversal of 2151708349 is 9438071512.

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 2151708349 - 2⁹ = 2151707837 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 (2151708319) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 25647 + ... + 70435.

It is an arithmetic number, because the mean of its divisors is an integer number (307438560).

Almost surely, 2^2151708349 is an apocalyptic number.

It is an amenable number.

2151708349 is a deficient number, since it is larger than the sum of its proper divisors (307800131).

2151708349 is an equidigital number, since it uses as much as digits as its factorization.

2151708349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51659.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 2151708349 is about 46386.5104205953. The cubic root of 2151708349 is about 1291.0046355435.

The spelling of 2151708349 in words is "two billion, one hundred fifty-one million, seven hundred eight thousand, three hundred forty-nine".