102045772 has 6 divisors (see below), whose sum is σ = 178580108. Its totient is φ = 51022884.

The previous prime is 102045763. The next prime is 102045773. The reversal of 102045772 is 277540201.

It is a self number, because there is not a number n which added to its sum of digits gives 102045772.

It is not an unprimeable number, because it can be changed into a prime (102045773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12755718 + ... + 12755725.

Almost surely, 2^102045772 is an apocalyptic number.

It is an amenable number.

102045772 is a deficient number, since it is larger than the sum of its proper divisors (76534336).

102045772 is a wasteful number, since it uses less digits than its factorization.

102045772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25511447 (or 25511445 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 28.

The square root of 102045772 is about 10101.7707358661. The cubic root of 102045772 is about 467.3027518711.

Adding to 102045772 its reverse (277540201), we get a palindrome (379585973).

The spelling of 102045772 in words is "one hundred two million, forty-five thousand, seven hundred seventy-two".