140377646 has 4 divisors (see below), whose sum is σ = 210566472. Its totient is φ = 70188822.

The previous prime is 140377631. The next prime is 140377709. The reversal of 140377646 is 646773041.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35094410 + ... + 35094413.

It is an arithmetic number, because the mean of its divisors is an integer number (52641618).

Almost surely, 2^140377646 is an apocalyptic number.

140377646 is a deficient number, since it is larger than the sum of its proper divisors (70188826).

140377646 is an equidigital number, since it uses as much as digits as its factorization.

140377646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70188825.

The product of its (nonzero) digits is 84672, while the sum is 38.

The square root of 140377646 is about 11848.1072750039. The cubic root of 140377646 is about 519.7158778246.

The spelling of 140377646 in words is "one hundred forty million, three hundred seventy-seven thousand, six hundred forty-six".