103215490 has 32 divisors (see below), whose sum is σ = 221564160. Its totient is φ = 33849024.

The previous prime is 103215473. The next prime is 103215493. The reversal of 103215490 is 94512301.

It is not an unprimeable number, because it can be changed into a prime (103215493) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30445 + ... + 33664.

It is an arithmetic number, because the mean of its divisors is an integer number (6923880).

Almost surely, 2^103215490 is an apocalyptic number.

103215490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

103215490 is an abundant number, since it is smaller than the sum of its proper divisors (118348670).

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

103215490 is a wasteful number, since it uses less digits than its factorization.

103215490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64146.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 103215490 is about 10159.5024484470. The cubic root of 103215490 is about 469.0814866527.

Adding to 103215490 its reverse (94512301), we get a palindrome (197727791).

The spelling of 103215490 in words is "one hundred three million, two hundred fifteen thousand, four hundred ninety".