103130730 has 24 divisors (see below), whose sum is σ = 268140132. Its totient is φ = 27501504.

The previous prime is 103130711. The next prime is 103130747. The reversal of 103130730 is 37031301.

It can be written as a sum of positive squares in 2 ways, for example, as 95824521 + 7306209 = 9789^2 + 2703^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 572859 + ... + 573038.

Almost surely, 2^103130730 is an apocalyptic number.

103130730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

103130730 is an abundant number, since it is smaller than the sum of its proper divisors (165009402).

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

103130730 is a wasteful number, since it uses less digits than its factorization.

103130730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1145910 (or 1145907 counting only the distinct ones).

The product of its (nonzero) digits is 189, while the sum is 18.

The square root of 103130730 is about 10155.3301275734. The cubic root of 103130730 is about 468.9530490989.

The spelling of 103130730 in words is "one hundred three million, one hundred thirty thousand, seven hundred thirty".