140351121 has 6 divisors (see below), whose sum is σ = 202729410. Its totient is φ = 93567408.

The previous prime is 140351117. The next prime is 140351137. The reversal of 140351121 is 121153041.

It can be written as a sum of positive squares in only one way, i.e., 116964225 + 23386896 = 10815^2 + 4836^2 .

It is not a de Polignac number, because 140351121 - 2² = 140351117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 140351094 and 140351103.

It is not an unprimeable number, because it can be changed into a prime (140351111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7797276 + ... + 7797293.

It is an arithmetic number, because the mean of its divisors is an integer number (33788235).

Almost surely, 2^140351121 is an apocalyptic number.

It is an amenable number.

140351121 is a deficient number, since it is larger than the sum of its proper divisors (62378289).

140351121 is a wasteful number, since it uses less digits than its factorization.

140351121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15594575 (or 15594572 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 140351121 is about 11846.9878450178. The cubic root of 140351121 is about 519.6831415297.

The spelling of 140351121 in words is "one hundred forty million, three hundred fifty-one thousand, one hundred twenty-one".