140510121 has 4 divisors (see below), whose sum is σ = 187346832. Its totient is φ = 93673412.

The previous prime is 140510113. The next prime is 140510137. The reversal of 140510121 is 121015041.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 140510121 - 2³ = 140510113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 140510121.

It is not an unprimeable number, because it can be changed into a prime (140510101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23418351 + ... + 23418356.

It is an arithmetic number, because the mean of its divisors is an integer number (46836708).

Almost surely, 2^140510121 is an apocalyptic number.

It is an amenable number.

140510121 is a deficient number, since it is larger than the sum of its proper divisors (46836711).

140510121 is an equidigital number, since it uses as much as digits as its factorization.

140510121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46836710.

The product of its (nonzero) digits is 40, while the sum is 15.

The square root of 140510121 is about 11853.6965120590. The cubic root of 140510121 is about 519.8793124749.

Adding to 140510121 its reverse (121015041), we get a palindrome (261525162).

The spelling of 140510121 in words is "one hundred forty million, five hundred ten thousand, one hundred twenty-one".