140361437 has 8 divisors (see below), whose sum is σ = 143244504. Its totient is φ = 137487168.

The previous prime is 140361359. The next prime is 140361443. The reversal of 140361437 is 734163041.

It can be written as a sum of positive squares in 4 ways, for example, as 25999801 + 114361636 = 5099^2 + 10694^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 140361437 - 2¹⁰ = 140360413 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 (140361497) 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, 37043 + ... + 40655.

It is an arithmetic number, because the mean of its divisors is an integer number (17905563).

Almost surely, 2^140361437 is an apocalyptic number.

It is an amenable number.

140361437 is a deficient number, since it is larger than the sum of its proper divisors (2883067).

140361437 is an equidigital number, since it uses as much as digits as its factorization.

140361437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4399.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 140361437 is about 11847.4232219500. The cubic root of 140361437 is about 519.6958736925.

The spelling of 140361437 in words is "one hundred forty million, three hundred sixty-one thousand, four hundred thirty-seven".