102245772 has 12 divisors (see below), whose sum is σ = 238573496. Its totient is φ = 34081920.

The previous prime is 102245753. The next prime is 102245789. The reversal of 102245772 is 277542201.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4260229 + ... + 4260252.

Almost surely, 2^102245772 is an apocalyptic number.

102245772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102245772 is an abundant number, since it is smaller than the sum of its proper divisors (136327724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102245772 is a wasteful number, since it uses less digits than its factorization.

102245772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8520488 (or 8520486 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 30.

The square root of 102245772 is about 10111.6651447722. The cubic root of 102245772 is about 467.6078422797.

Adding to 102245772 its reverse (277542201), we get a palindrome (379787973).

The spelling of 102245772 in words is "one hundred two million, two hundred forty-five thousand, seven hundred seventy-two".