2131751447 has 8 divisors (see below), whose sum is σ = 2442427296. Its totient is φ = 1822610592.

The previous prime is 2131751423. The next prime is 2131751467. The reversal of 2131751447 is 7441571312.

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 2131751447 - 2⁶ = 2131751383 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 (2131751467) 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, 380768 + ... + 386325.

It is an arithmetic number, because the mean of its divisors is an integer number (305303412).

Almost surely, 2^2131751447 is an apocalyptic number.

2131751447 is a deficient number, since it is larger than the sum of its proper divisors (310675849).

2131751447 is an equidigital number, since it uses as much as digits as its factorization.

2131751447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 767497.

The product of its digits is 23520, while the sum is 35.

The square root of 2131751447 is about 46170.8939376313. The cubic root of 2131751447 is about 1287.0009144494. Note that the first 3 decimals are identical.

The spelling of 2131751447 in words is "two billion, one hundred thirty-one million, seven hundred fifty-one thousand, four hundred forty-seven".