140412043 has 4 divisors (see below), whose sum is σ = 140447848. Its totient is φ = 140376240.

The previous prime is 140412023. The next prime is 140412067. The reversal of 140412043 is 340214041.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140412043 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 140412043.

It is not an unprimeable number, because it can be changed into a prime (140412023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11178 + ... + 20143.

It is an arithmetic number, because the mean of its divisors is an integer number (35111962).

Almost surely, 2^140412043 is an apocalyptic number.

140412043 is a deficient number, since it is larger than the sum of its proper divisors (35805).

140412043 is an equidigital number, since it uses as much as digits as its factorization.

140412043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35804.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 140412043 is about 11849.5587681567. The cubic root of 140412043 is about 519.7583233460.

Adding to 140412043 its reverse (340214041), we get a palindrome (480626084).

The spelling of 140412043 in words is "one hundred forty million, four hundred twelve thousand, forty-three".