2154520342 has 8 divisors (see below), whose sum is σ = 3480379056. Its totient is φ = 994393992.

The previous prime is 2154520337. The next prime is 2154520351. The reversal of 2154520342 is 2430254512.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2154520342.

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, 41433058 + ... + 41433109.

It is an arithmetic number, because the mean of its divisors is an integer number (435047382).

Almost surely, 2^2154520342 is an apocalyptic number.

2154520342 is a deficient number, since it is larger than the sum of its proper divisors (1325858714).

2154520342 is a wasteful number, since it uses less digits than its factorization.

2154520342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82866182.

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

The square root of 2154520342 is about 46416.8109848145. The cubic root of 2154520342 is about 1291.5667804567.

Adding to 2154520342 its reverse (2430254512), we get a palindrome (4584774854).

The spelling of 2154520342 in words is "two billion, one hundred fifty-four million, five hundred twenty thousand, three hundred forty-two".