140242851 has 36 divisors (see below), whose sum is σ = 236491632. Its totient is φ = 79851744.

The previous prime is 140242847. The next prime is 140242873. The reversal of 140242851 is 158242041.

It is not a de Polignac number, because 140242851 - 2² = 140242847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140242841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 214441 + ... + 215093.

It is an arithmetic number, because the mean of its divisors is an integer number (6569212).

Almost surely, 2^140242851 is an apocalyptic number.

140242851 is a deficient number, since it is larger than the sum of its proper divisors (96248781).

140242851 is a wasteful number, since it uses less digits than its factorization.

140242851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1160 (or 1150 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 140242851 is about 11842.4174474640. The cubic root of 140242851 is about 519.5494754123.

Adding to 140242851 its reverse (158242041), we get a palindrome (298484892).

It can be divided in two parts, 1402 and 42851, that added together give a triangular number (44253 = T₂₉₇).

The spelling of 140242851 in words is "one hundred forty million, two hundred forty-two thousand, eight hundred fifty-one".