140023554 has 16 divisors (see below), whose sum is σ = 305506080. Its totient is φ = 42431360.

The previous prime is 140023553. The next prime is 140023561. The reversal of 140023554 is 455320041.

140023554 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (140023553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1060719 + ... + 1060850.

It is an arithmetic number, because the mean of its divisors is an integer number (19094130).

Almost surely, 2^140023554 is an apocalyptic number.

140023554 is an abundant number, since it is smaller than the sum of its proper divisors (165482526).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

140023554 is a wasteful number, since it uses less digits than its factorization.

140023554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2121585.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 140023554 is about 11833.1548625039. The cubic root of 140023554 is about 519.2785285536.

Adding to 140023554 its reverse (455320041), we get a palindrome (595343595).

The spelling of 140023554 in words is "one hundred forty million, twenty-three thousand, five hundred fifty-four".