102730450 has 12 divisors (see below), whose sum is σ = 191078730. Its totient is φ = 41092160.

The previous prime is 102730417. The next prime is 102730451. The reversal of 102730450 is 54037201.

It can be written as a sum of positive squares in 3 ways, for example, as 84437721 + 18292729 = 9189^2 + 4277^2 .

It is not an unprimeable number, because it can be changed into a prime (102730451) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1027255 + ... + 1027354.

Almost surely, 2^102730450 is an apocalyptic number.

102730450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102730450 is a deficient number, since it is larger than the sum of its proper divisors (88348280).

102730450 is a wasteful number, since it uses less digits than its factorization.

102730450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2054621 (or 2054616 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 102730450 is about 10135.6030900978. The cubic root of 102730450 is about 468.3455486092.

Adding to 102730450 its reverse (54037201), we get a palindrome (156767651).

The spelling of 102730450 in words is "one hundred two million, seven hundred thirty thousand, four hundred fifty".