140248129 has 8 divisors (see below), whose sum is σ = 161936768. Its totient is φ = 118972800.

The previous prime is 140248127. The next prime is 140248183. The reversal of 140248129 is 921842041.

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 140248129 - 2¹ = 140248127 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 140248129.

It is not an unprimeable number, because it can be changed into a prime (140248127) 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, 102597 + ... + 103954.

It is an arithmetic number, because the mean of its divisors is an integer number (20242096).

Almost surely, 2^140248129 is an apocalyptic number.

It is an amenable number.

140248129 is a deficient number, since it is larger than the sum of its proper divisors (21688639).

140248129 is an equidigital number, since it uses as much as digits as its factorization.

140248129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206655.

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 140248129 is about 11842.6402883816. The cubic root of 140248129 is about 519.5559930297. Note that the first 3 decimals are identical.

The spelling of 140248129 in words is "one hundred forty million, two hundred forty-eight thousand, one hundred twenty-nine".