140439241 has 16 divisors (see below), whose sum is σ = 152409600. Its totient is φ = 128988288.

The previous prime is 140439239. The next prime is 140439259. The reversal of 140439241 is 142934041.

It is a cyclic number.

It is not a de Polignac number, because 140439241 - 2¹ = 140439239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140439841) 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, 88840 + ... + 90406.

It is an arithmetic number, because the mean of its divisors is an integer number (9525600).

Almost surely, 2^140439241 is an apocalyptic number.

It is an amenable number.

140439241 is a deficient number, since it is larger than the sum of its proper divisors (11970359).

140439241 is a wasteful number, since it uses less digits than its factorization.

140439241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1728.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 140439241 is about 11850.7063502561. The cubic root of 140439241 is about 519.7918804729.

The spelling of 140439241 in words is "one hundred forty million, four hundred thirty-nine thousand, two hundred forty-one".