140142951 has 24 divisors (see below), whose sum is σ = 230826960. Its totient is φ = 81167616.

The previous prime is 140142943. The next prime is 140142953. The reversal of 140142951 is 159241041.

140142951 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 140142951 - 2³ = 140142943 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140142953) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33241 + ... + 37218.

It is an arithmetic number, because the mean of its divisors is an integer number (9617790).

Almost surely, 2^140142951 is an apocalyptic number.

140142951 is a deficient number, since it is larger than the sum of its proper divisors (90684009).

140142951 is a wasteful number, since it uses less digits than its factorization.

140142951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70495 (or 70492 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 140142951 is about 11838.1988072510. The cubic root of 140142951 is about 519.4260815490.

Adding to 140142951 its reverse (159241041), we get a palindrome (299383992).

It can be divided in two parts, 14014 and 2951, that multiplied together give a palindrome (41355314).

The spelling of 140142951 in words is "one hundred forty million, one hundred forty-two thousand, nine hundred fifty-one".