2151200234 has 16 divisors (see below), whose sum is σ = 3264391368. Its totient is φ = 1063099392.

The previous prime is 2151200147. The next prime is 2151200237. The reversal of 2151200234 is 4320021512.

It can be written as a sum of positive squares in 4 ways, for example, as 1895296225 + 255904009 = 43535^2 + 15997^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2151200237) 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, 147662 + ... + 161574.

Almost surely, 2^2151200234 is an apocalyptic number.

2151200234 is a deficient number, since it is larger than the sum of its proper divisors (1113191134).

2151200234 is a wasteful number, since it uses less digits than its factorization.

2151200234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14809.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 2151200234 is about 46381.0331277776. The cubic root of 2151200234 is about 1290.9030061470.

Adding to 2151200234 its reverse (4320021512), we get a palindrome (6471221746).

The spelling of 2151200234 in words is "two billion, one hundred fifty-one million, two hundred thousand, two hundred thirty-four".