2154431441 has 8 divisors (see below), whose sum is σ = 2159529984. Its totient is φ = 2149340800.

The previous prime is 2154431417. The next prime is 2154431497. The reversal of 2154431441 is 1441344512.

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 2154431441 - 2¹⁴ = 2154415057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2154401441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1268705 + ... + 1270401.

It is an arithmetic number, because the mean of its divisors is an integer number (269941248).

Almost surely, 2^2154431441 is an apocalyptic number.

It is an amenable number.

2154431441 is a deficient number, since it is larger than the sum of its proper divisors (5098543).

2154431441 is a wasteful number, since it uses less digits than its factorization.

2154431441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3951.

The product of its digits is 7680, while the sum is 29.

The square root of 2154431441 is about 46415.8533369796. The cubic root of 2154431441 is about 1291.5490157667.

Adding to 2154431441 its reverse (1441344512), we get a palindrome (3595775953).

The spelling of 2154431441 in words is "two billion, one hundred fifty-four million, four hundred thirty-one thousand, four hundred forty-one".