140621043 has 16 divisors (see below), whose sum is σ = 191265536. Its totient is φ = 91873440.

The previous prime is 140621023. The next prime is 140621069. The reversal of 140621043 is 340126041.

140621043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 140621043 - 2⁹ = 140620531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140621023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54930 + ... + 57432.

It is an arithmetic number, because the mean of its divisors is an integer number (11954096).

Almost surely, 2^140621043 is an apocalyptic number.

140621043 is a deficient number, since it is larger than the sum of its proper divisors (50644493).

140621043 is a wasteful number, since it uses less digits than its factorization.

140621043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2874.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 140621043 is about 11858.3743826884. The cubic root of 140621043 is about 520.0160781518.

Adding to 140621043 its reverse (340126041), we get a palindrome (480747084).

The spelling of 140621043 in words is "one hundred forty million, six hundred twenty-one thousand, forty-three".