140105554 has 24 divisors (see below), whose sum is σ = 224759808. Its totient is φ = 65430960.

The previous prime is 140105521. The next prime is 140105557. The reversal of 140105554 is 455501041.

It is a happy number.

140105554 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140105557) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50799 + ... + 53485.

It is an arithmetic number, because the mean of its divisors is an integer number (9364992).

Almost surely, 2^140105554 is an apocalyptic number.

140105554 is a deficient number, since it is larger than the sum of its proper divisors (84654254).

140105554 is a wasteful number, since it uses less digits than its factorization.

140105554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2778 (or 2749 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 140105554 is about 11836.6191963753. The cubic root of 140105554 is about 519.3798746696.

Adding to 140105554 its reverse (455501041), we get a palindrome (595606595).

The spelling of 140105554 in words is "one hundred forty million, one hundred five thousand, five hundred fifty-four".