139877216 has 12 divisors (see below), whose sum is σ = 275383332. Its totient is φ = 69938592.

The previous prime is 139877197. The next prime is 139877249. The reversal of 139877216 is 612778931.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2185550 + ... + 2185613.

It is an arithmetic number, because the mean of its divisors is an integer number (22948611).

Almost surely, 2^139877216 is an apocalyptic number.

139877216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

139877216 is a deficient number, since it is larger than the sum of its proper divisors (135506116).

139877216 is an equidigital number, since it uses as much as digits as its factorization.

139877216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4371173 (or 4371165 counting only the distinct ones).

The product of its digits is 127008, while the sum is 44.

The square root of 139877216 is about 11826.9698570682. The cubic root of 139877216 is about 519.0975669300.

The spelling of 139877216 in words is "one hundred thirty-nine million, eight hundred seventy-seven thousand, two hundred sixteen".