140420356 has 6 divisors (see below), whose sum is σ = 245735630. Its totient is φ = 70210176.

The previous prime is 140420333. The next prime is 140420363. The reversal of 140420356 is 653024041.

It can be written as a sum of positive squares in only one way, i.e., 114062400 + 26357956 = 10680^2 + 5134^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 140420356.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17552541 + ... + 17552548.

Almost surely, 2^140420356 is an apocalyptic number.

It is an amenable number.

140420356 is a deficient number, since it is larger than the sum of its proper divisors (105315274).

140420356 is a wasteful number, since it uses less digits than its factorization.

140420356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35105093 (or 35105091 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 140420356 is about 11849.9095355197. The cubic root of 140420356 is about 519.7685804568.

Adding to 140420356 its reverse (653024041), we get a palindrome (793444397).

The spelling of 140420356 in words is "one hundred forty million, four hundred twenty thousand, three hundred fifty-six".