2114972509 has 4 divisors (see below), whose sum is σ = 2277662716. Its totient is φ = 1952282304.

The previous prime is 2114972507. The next prime is 2114972539. The reversal of 2114972509 is 9052794112.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 664505284 + 1450467225 = 25778^2 + 38085^2 .

It is a cyclic number.

It is not a de Polignac number, because 2114972509 - 2¹ = 2114972507 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 (2114972507) 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, 81345084 + ... + 81345109.

It is an arithmetic number, because the mean of its divisors is an integer number (569415679).

Almost surely, 2^2114972509 is an apocalyptic number.

It is an amenable number.

2114972509 is a deficient number, since it is larger than the sum of its proper divisors (162690207).

2114972509 is a wasteful number, since it uses less digits than its factorization.

2114972509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162690206.

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 2114972509 is about 45988.8302634455. The cubic root of 2114972509 is about 1283.6153705792.

The spelling of 2114972509 in words is "two billion, one hundred fourteen million, nine hundred seventy-two thousand, five hundred nine".