2154243454 has 8 divisors (see below), whose sum is σ = 3525125688. Its totient is φ = 979201560.

The previous prime is 2154243407. The next prime is 2154243461. The reversal of 2154243454 is 4543424512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48960057 + ... + 48960100.

It is an arithmetic number, because the mean of its divisors is an integer number (440640711).

Almost surely, 2^2154243454 is an apocalyptic number.

2154243454 is a deficient number, since it is larger than the sum of its proper divisors (1370882234).

2154243454 is a wasteful number, since it uses less digits than its factorization.

2154243454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97920170.

The product of its digits is 76800, while the sum is 34.

The square root of 2154243454 is about 46413.8282627064. The cubic root of 2154243454 is about 1291.5114495544.

Adding to 2154243454 its reverse (4543424512), we get a palindrome (6697667966).

The spelling of 2154243454 in words is "two billion, one hundred fifty-four million, two hundred forty-three thousand, four hundred fifty-four".