102272774 has 8 divisors (see below), whose sum is σ = 154079760. Its totient is φ = 50912856.

The previous prime is 102272713. The next prime is 102272803. The reversal of 102272774 is 477272201.

102272774 = 5055² + 5056² + ... + 5058².

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 102272774.

It is a congruent number.

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 in 3 ways as a sum of consecutive naturals, for example, 111194 + ... + 112109.

It is an arithmetic number, because the mean of its divisors is an integer number (19259970).

Almost surely, 2^102272774 is an apocalyptic number.

102272774 is a deficient number, since it is larger than the sum of its proper divisors (51806986).

102272774 is a wasteful number, since it uses less digits than its factorization.

102272774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223534.

The product of its (nonzero) digits is 10976, while the sum is 32.

The square root of 102272774 is about 10113.0002472066. Note that the first 3 decimals coincide. The cubic root of 102272774 is about 467.6490020440.

The spelling of 102272774 in words is "one hundred two million, two hundred seventy-two thousand, seven hundred seventy-four".