140242122 has 48 divisors (see below), whose sum is σ = 311663040. Its totient is φ = 45562176.

The previous prime is 140242121. The next prime is 140242139. The reversal of 140242122 is 221242041.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 140242095 and 140242104.

It is not an unprimeable number, because it can be changed into a prime (140242121) 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, 123654 + ... + 124782.

It is an arithmetic number, because the mean of its divisors is an integer number (6492980).

Almost surely, 2^140242122 is an apocalyptic number.

140242122 is an abundant number, since it is smaller than the sum of its proper divisors (171420918).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

140242122 is a wasteful number, since it uses less digits than its factorization.

140242122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1307 (or 1304 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 140242122 is about 11842.3866682354. The cubic root of 140242122 is about 519.5485751829.

Adding to 140242122 its reverse (221242041), we get a palindrome (361484163).

The spelling of 140242122 in words is "one hundred forty million, two hundred forty-two thousand, one hundred twenty-two".