140520026 has 8 divisors (see below), whose sum is σ = 211323060. Its totient is φ = 70079008.

The previous prime is 140519999. The next prime is 140520031. The reversal of 140520026 is 620025041.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 135745801 + 4774225 = 11651^2 + 2185^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89531 + ... + 91086.

Almost surely, 2^140520026 is an apocalyptic number.

140520026 is a deficient number, since it is larger than the sum of its proper divisors (70803034).

140520026 is a wasteful number, since it uses less digits than its factorization.

140520026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181008.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 140520026 is about 11854.1143068557. The cubic root of 140520026 is about 519.8915281633.

Adding to 140520026 its reverse (620025041), we get a palindrome (760545067).

The spelling of 140520026 in words is "one hundred forty million, five hundred twenty thousand, twenty-six".