2129474231 has 4 divisors (see below), whose sum is σ = 2141239464. Its totient is φ = 2117709000.

The previous prime is 2129474201. The next prime is 2129474233. The reversal of 2129474231 is 1324749212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2129474231 - 2²⁶ = 2062365367 is a prime.

It is a super-2 number, since 2×2129474231² = 9069321000986082722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2129474191 and 2129474200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2129474233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5882345 + ... + 5882706.

It is an arithmetic number, because the mean of its divisors is an integer number (535309866).

Almost surely, 2^2129474231 is an apocalyptic number.

2129474231 is a deficient number, since it is larger than the sum of its proper divisors (11765233).

2129474231 is a wasteful number, since it uses less digits than its factorization.

2129474231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11765232.

The product of its digits is 24192, while the sum is 35.

The square root of 2129474231 is about 46146.2266171352. The cubic root of 2129474231 is about 1286.5424771259.

The spelling of 2129474231 in words is "two billion, one hundred twenty-nine million, four hundred seventy-four thousand, two hundred thirty-one".