140423241 has 16 divisors (see below), whose sum is σ = 214502400. Its totient is φ = 80045328.

The previous prime is 140423207. The next prime is 140423317. The reversal of 140423241 is 142324041.

It is not a de Polignac number, because 140423241 - 2¹⁴ = 140406857 is a prime.

It is a super-2 number, since 2×140423241² = 39437373225888162, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (140423141) 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, 820 + ... + 16778.

It is an arithmetic number, because the mean of its divisors is an integer number (13406400).

Almost surely, 2^140423241 is an apocalyptic number.

It is an amenable number.

140423241 is a deficient number, since it is larger than the sum of its proper divisors (74079159).

140423241 is a wasteful number, since it uses less digits than its factorization.

140423241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16388.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 140423241 is about 11850.0312657815. The cubic root of 140423241 is about 519.7721400597.

Adding to 140423241 its reverse (142324041), we get a palindrome (282747282).

The spelling of 140423241 in words is "one hundred forty million, four hundred twenty-three thousand, two hundred forty-one".