140047441 has 4 divisors (see below), whose sum is σ = 140218432. Its totient is φ = 139876452.

The previous prime is 140047433. The next prime is 140047447. The reversal of 140047441 is 144740041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 140047441 - 2³ = 140047433 is a prime.

It is a super-2 number, since 2×140047441² = 39226571461296962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140047447) 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, 84261 + ... + 85906.

It is an arithmetic number, because the mean of its divisors is an integer number (35054608).

Almost surely, 2^140047441 is an apocalyptic number.

It is an amenable number.

140047441 is a deficient number, since it is larger than the sum of its proper divisors (170991).

140047441 is an equidigital number, since it uses as much as digits as its factorization.

140047441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170990.

The product of its (nonzero) digits is 1792, while the sum is 25.

The square root of 140047441 is about 11834.1641445435. The cubic root of 140047441 is about 519.3080552549.

Adding to 140047441 its reverse (144740041), we get a palindrome (284787482).

It can be divided in two parts, 1400 and 47441, that added together give a square (48841 = 221²).

The spelling of 140047441 in words is "one hundred forty million, forty-seven thousand, four hundred forty-one".