2154350231 has 32 divisors (see below), whose sum is σ = 2501176320. Its totient is φ = 1837382400.

The previous prime is 2154350213. The next prime is 2154350251. The reversal of 2154350231 is 1320534512.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2154350231 - 2⁶ = 2154350167 is a prime.

It is a super-2 number, since 2×2154350231² = 9282449835619506722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2154350231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2154350251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1652726 + ... + 1654028.

It is an arithmetic number, because the mean of its divisors is an integer number (78161760).

Almost surely, 2^2154350231 is an apocalyptic number.

2154350231 is a deficient number, since it is larger than the sum of its proper divisors (346826089).

2154350231 is a wasteful number, since it uses less digits than its factorization.

2154350231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1487.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 2154350231 is about 46414.9785198701. The cubic root of 2154350231 is about 1291.5327875079.

Adding to 2154350231 its reverse (1320534512), we get a palindrome (3474884743).

The spelling of 2154350231 in words is "two billion, one hundred fifty-four million, three hundred fifty thousand, two hundred thirty-one".