140002437 has 8 divisors (see below), whose sum is σ = 186728800. Its totient is φ = 93305520.

The previous prime is 140002409. The next prime is 140002483. The reversal of 140002437 is 734200041.

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

It is not a de Polignac number, because 140002437 - 2²² = 135808133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140002937) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8814 + ... + 18912.

It is an arithmetic number, because the mean of its divisors is an integer number (23341100).

Almost surely, 2^140002437 is an apocalyptic number.

It is an amenable number.

140002437 is a deficient number, since it is larger than the sum of its proper divisors (46726363).

140002437 is a wasteful number, since it uses less digits than its factorization.

140002437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14723.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 140002437 is about 11832.2625477970. The cubic root of 140002437 is about 519.2524230505.

Adding to 140002437 its reverse (734200041), we get a palindrome (874202478).

The spelling of 140002437 in words is "one hundred forty million, two thousand, four hundred thirty-seven".