140068633 has 6 divisors (see below), whose sum is σ = 144733722. Its totient is φ = 135549360.

The previous prime is 140068631. The next prime is 140068667. The reversal of 140068633 is 336860041.

It can be written as a sum of positive squares in only one way, i.e., 116380944 + 23687689 = 10788^2 + 4867^2 .

It is not a de Polignac number, because 140068633 - 2¹ = 140068631 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 140068595 and 140068604.

It is not an unprimeable number, because it can be changed into a prime (140068631) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 71916 + ... + 73837.

It is an arithmetic number, because the mean of its divisors is an integer number (24122287).

Almost surely, 2^140068633 is an apocalyptic number.

It is an amenable number.

140068633 is a deficient number, since it is larger than the sum of its proper divisors (4665089).

140068633 is an equidigital number, since it uses as much as digits as its factorization.

140068633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145815 (or 145784 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 140068633 is about 11835.0594844301. The cubic root of 140068633 is about 519.3342478583.

The spelling of 140068633 in words is "one hundred forty million, sixty-eight thousand, six hundred thirty-three".