140530274 has 4 divisors (see below), whose sum is σ = 210795414. Its totient is φ = 70265136.

The previous prime is 140530249. The next prime is 140530309. The reversal of 140530274 is 472035041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 472035041 = 9887 ⋅47743.

It can be written as a sum of positive squares in only one way, i.e., 98863249 + 41667025 = 9943^2 + 6455^2 .

It is a super-3 number, since 3×140530274³ (a number of 25 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35132567 + ... + 35132570.

Almost surely, 2^140530274 is an apocalyptic number.

140530274 is a deficient number, since it is larger than the sum of its proper divisors (70265140).

140530274 is an equidigital number, since it uses as much as digits as its factorization.

140530274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70265139.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 140530274 is about 11854.5465539598. The cubic root of 140530274 is about 519.9041662644.

The spelling of 140530274 in words is "one hundred forty million, five hundred thirty thousand, two hundred seventy-four".