140252539 has 8 divisors (see below), whose sum is σ = 161876448. Its totient is φ = 119025600.

The previous prime is 140252501. The next prime is 140252569. The reversal of 140252539 is 935252041.

140252539 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 140252539 - 2¹³ = 140244347 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 140252539.

It is not an unprimeable number, because it can be changed into a prime (140252569) 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, 98482 + ... + 99895.

It is an arithmetic number, because the mean of its divisors is an integer number (20234556).

Almost surely, 2^140252539 is an apocalyptic number.

140252539 is a deficient number, since it is larger than the sum of its proper divisors (21623909).

140252539 is a wasteful number, since it uses less digits than its factorization.

140252539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198485.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 140252539 is about 11842.8264785059. The cubic root of 140252539 is about 519.5614386589.

The spelling of 140252539 in words is "one hundred forty million, two hundred fifty-two thousand, five hundred thirty-nine".