140129282 has 4 divisors (see below), whose sum is σ = 210193926. Its totient is φ = 70064640.

The previous prime is 140129281. The next prime is 140129291. The reversal of 140129282 is 282921041.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 121198081 + 18931201 = 11009^2 + 4351^2 .

It is not an unprimeable number, because it can be changed into a prime (140129281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35032319 + ... + 35032322.

Almost surely, 2^140129282 is an apocalyptic number.

140129282 is a deficient number, since it is larger than the sum of its proper divisors (70064644).

140129282 is an equidigital number, since it uses as much as digits as its factorization.

140129282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70064643.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 140129282 is about 11837.6214671698. The cubic root of 140129282 is about 519.4091933979.

The spelling of 140129282 in words is "one hundred forty million, one hundred twenty-nine thousand, two hundred eighty-two".