140290273 has 8 divisors (see below), whose sum is σ = 152557992. Its totient is φ = 128468736.

The previous prime is 140290247. The next prime is 140290277. The reversal of 140290273 is 372092041.

It can be written as a sum of positive squares in 4 ways, for example, as 56896849 + 83393424 = 7543^2 + 9132^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 140290273 - 2⁹ = 140289761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140290277) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110890 + ... + 112147.

It is an arithmetic number, because the mean of its divisors is an integer number (19069749).

Almost surely, 2^140290273 is an apocalyptic number.

It is an amenable number.

140290273 is a deficient number, since it is larger than the sum of its proper divisors (12267719).

140290273 is a wasteful number, since it uses less digits than its factorization.

140290273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223091.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 140290273 is about 11844.4194876744. The cubic root of 140290273 is about 519.6080293149.

The spelling of 140290273 in words is "one hundred forty million, two hundred ninety thousand, two hundred seventy-three".