2157334471 has 8 divisors (see below), whose sum is σ = 2188841264. Its totient is φ = 2125880640.

The previous prime is 2157334453. The next prime is 2157334489. The reversal of 2157334471 is 1744337512.

It is an interprime number because it is at equal distance from previous prime (2157334453) and next prime (2157334489).

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 2157334471 - 2¹¹ = 2157332423 is a prime.

It is a super-3 number, since 3×2157334471³ (a number of 29 digits) contains 333 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 2157334471.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2157334171) 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, 72865 + ... + 98101.

It is an arithmetic number, because the mean of its divisors is an integer number (273605158).

Almost surely, 2^2157334471 is an apocalyptic number.

2157334471 is a deficient number, since it is larger than the sum of its proper divisors (31506793).

2157334471 is a wasteful number, since it uses less digits than its factorization.

2157334471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26481.

The product of its digits is 70560, while the sum is 37.

The square root of 2157334471 is about 46447.1147758394. The cubic root of 2157334471 is about 1292.1288629069.

The spelling of 2157334471 in words is "two billion, one hundred fifty-seven million, three hundred thirty-four thousand, four hundred seventy-one".