140142015 has 64 divisors (see below), whose sum is σ = 274176000. Its totient is φ = 67485312.

The previous prime is 140141993. The next prime is 140142019. The reversal of 140142015 is 510241041.

It is not a de Polignac number, because 140142015 - 2¹⁰ = 140140991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140142019) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 81636 + ... + 83334.

It is an arithmetic number, because the mean of its divisors is an integer number (4284000).

Almost surely, 2^140142015 is an apocalyptic number.

140142015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

140142015 is a deficient number, since it is larger than the sum of its proper divisors (134033985).

140142015 is a wasteful number, since it uses less digits than its factorization.

140142015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1773 (or 1767 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 140142015 is about 11838.1592741439. The cubic root of 140142015 is about 519.4249251490.

Adding to 140142015 its reverse (510241041), we get a palindrome (650383056).

The spelling of 140142015 in words is "one hundred forty million, one hundred forty-two thousand, fifteen".