54143445 has 16 divisors (see below), whose sum is σ = 91189440. Its totient is φ = 27356544.

The previous prime is 54143429. The next prime is 54143477. The reversal of 54143445 is 54434145.

It is not a de Polignac number, because 54143445 - 2⁴ = 54143429 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94704 + ... + 95273.

It is an arithmetic number, because the mean of its divisors is an integer number (5699340).

Almost surely, 2^54143445 is an apocalyptic number.

It is an amenable number.

54143445 is a deficient number, since it is larger than the sum of its proper divisors (37045995).

54143445 is a wasteful number, since it uses less digits than its factorization.

54143445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190004.

The product of its digits is 19200, while the sum is 30.

The square root of 54143445 is about 7358.2229512295. Note that the first 3 decimals coincide. The cubic root of 54143445 is about 378.3107030825.

The spelling of 54143445 in words is "fifty-four million, one hundred forty-three thousand, four hundred forty-five".