2154250243 has 8 divisors (see below), whose sum is σ = 2198581056. Its totient is φ = 2110056000.

The previous prime is 2154250213. The next prime is 2154250261. The reversal of 2154250243 is 3420524512.

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 2154250243 - 2¹⁷ = 2154119171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2154250213) 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, 1963 + ... + 65668.

It is an arithmetic number, because the mean of its divisors is an integer number (274822632).

Almost surely, 2^2154250243 is an apocalyptic number.

2154250243 is a deficient number, since it is larger than the sum of its proper divisors (44330813).

2154250243 is an equidigital number, since it uses as much as digits as its factorization.

2154250243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68285.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 2154250243 is about 46413.9013981803. The cubic root of 2154250243 is about 1291.5128062661.

Adding to 2154250243 its reverse (3420524512), we get a palindrome (5574774755).

The spelling of 2154250243 in words is "two billion, one hundred fifty-four million, two hundred fifty thousand, two hundred forty-three".