140277406 has 4 divisors (see below), whose sum is σ = 210416112. Its totient is φ = 70138702.

The previous prime is 140277373. The next prime is 140277407. The reversal of 140277406 is 604772041.

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

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140277407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35069350 + ... + 35069353.

It is an arithmetic number, because the mean of its divisors is an integer number (52604028).

Almost surely, 2^140277406 is an apocalyptic number.

140277406 is a deficient number, since it is larger than the sum of its proper divisors (70138706).

140277406 is an equidigital number, since it uses as much as digits as its factorization.

140277406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70138705.

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 140277406 is about 11843.8763080336. The cubic root of 140277406 is about 519.5921432030.

The spelling of 140277406 in words is "one hundred forty million, two hundred seventy-seven thousand, four hundred six".