140424261 has 8 divisors (see below), whose sum is σ = 187297440. Its totient is φ = 93583632.

The previous prime is 140424259. The next prime is 140424313. The reversal of 140424261 is 162424041.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 140424261 - 2¹ = 140424259 is a prime.

It is a super-2 number, since 2×140424261² = 39437946154792242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140424241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4930 + ... + 17468.

It is an arithmetic number, because the mean of its divisors is an integer number (23412180).

Almost surely, 2^140424261 is an apocalyptic number.

It is an amenable number.

140424261 is a deficient number, since it is larger than the sum of its proper divisors (46873179).

140424261 is a wasteful number, since it uses less digits than its factorization.

140424261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16275.

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 140424261 is about 11850.0743035645. The cubic root of 140424261 is about 519.7733985557.

The spelling of 140424261 in words is "one hundred forty million, four hundred twenty-four thousand, two hundred sixty-one".