102278416 has 10 divisors (see below), whose sum is σ = 198164462. Its totient is φ = 51139200.

The previous prime is 102278413. The next prime is 102278417. The reversal of 102278416 is 614872201.

It can be written as a sum of positive squares in only one way, i.e., 56310016 + 45968400 = 7504^2 + 6780^2 .

It is not an unprimeable number, because it can be changed into a prime (102278413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3196185 + ... + 3196216.

Almost surely, 2^102278416 is an apocalyptic number.

102278416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

102278416 is a deficient number, since it is larger than the sum of its proper divisors (95886046).

102278416 is an equidigital number, since it uses as much as digits as its factorization.

102278416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6392409 (or 6392403 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 102278416 is about 10113.2791912416. The cubic root of 102278416 is about 467.6576013582.

The spelling of 102278416 in words is "one hundred two million, two hundred seventy-eight thousand, four hundred sixteen".