30137130 has 96 divisors (see below), whose sum is σ = 84409920. Its totient is φ = 7650720.

The previous prime is 30137071. The next prime is 30137131. The reversal of 30137130 is 3173103.

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

It is not an unprimeable number, because it can be changed into a prime (30137131) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 142725 + ... + 142935.

It is an arithmetic number, because the mean of its divisors is an integer number (879270).

Almost surely, 2^30137130 is an apocalyptic number.

30137130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 30137130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42204960).

30137130 is an abundant number, since it is smaller than the sum of its proper divisors (54272790).

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

30137130 is a wasteful number, since it uses less digits than its factorization.

30137130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273 (or 244 counting only the distinct ones).

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

The square root of 30137130 is about 5489.7295015328. The cubic root of 30137130 is about 311.1959697185.

It can be divided in two parts, 301371 and 30, that added together give a square (301401 = 549²).

The spelling of 30137130 in words is "thirty million, one hundred thirty-seven thousand, one hundred thirty".