2347452509 has 4 divisors (see below), whose sum is σ = 2347619100. Its totient is φ = 2347285920.

The previous prime is 2347452491. The next prime is 2347452557. The reversal of 2347452509 is 9052547432.

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 1662845284 + 684607225 = 40778^2 + 26165^2 .

It is a cyclic number.

It is not a de Polignac number, because 2347452509 - 2¹⁶ = 2347386973 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2347452409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59984 + ... + 91065.

It is an arithmetic number, because the mean of its divisors is an integer number (586904775).

Almost surely, 2^2347452509 is an apocalyptic number.

It is an amenable number.

2347452509 is a deficient number, since it is larger than the sum of its proper divisors (166591).

2347452509 is a wasteful number, since it uses less digits than its factorization.

2347452509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166590.

The product of its (nonzero) digits is 302400, while the sum is 41.

The square root of 2347452509 is about 48450.5160860026. The cubic root of 2347452509 is about 1329.0223106615.

The spelling of 2347452509 in words is "two billion, three hundred forty-seven million, four hundred fifty-two thousand, five hundred nine".