102003290 has 16 divisors (see below), whose sum is σ = 185292360. Its totient is φ = 40426560.

The previous prime is 102003289. The next prime is 102003331. The reversal of 102003290 is 92300201.

It can be written as a sum of positive squares in 4 ways, for example, as 84805681 + 17197609 = 9209^2 + 4147^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45701 + ... + 47880.

Almost surely, 2^102003290 is an apocalyptic number.

102003290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102003290 is a deficient number, since it is larger than the sum of its proper divisors (83289070).

102003290 is a wasteful number, since it uses less digits than its factorization.

102003290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93697.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 102003290 is about 10099.6678163195. The cubic root of 102003290 is about 467.2378962984.

Adding to 102003290 its reverse (92300201), we get a palindrome (194303491).

The spelling of 102003290 in words is "one hundred two million, three thousand, two hundred ninety".