30661150 has 48 divisors (see below), whose sum is σ = 62902224. Its totient is φ = 11047680.

The previous prime is 30661109. The next prime is 30661151. The reversal of 30661150 is 5116603.

It is a super-2 number, since 2×30661150² = 1880212238645000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30661151) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27402 + ... + 28498.

It is an arithmetic number, because the mean of its divisors is an integer number (1310463).

Almost surely, 2^30661150 is an apocalyptic number.

30661150 is an abundant number, since it is smaller than the sum of its proper divisors (32241074).

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

30661150 is a wasteful number, since it uses less digits than its factorization.

30661150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1165 (or 1160 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 30661150 is about 5537.2511230754. The cubic root of 30661150 is about 312.9892921650.

Adding to 30661150 its reverse (5116603), we get a palindrome (35777753).

The spelling of 30661150 in words is "thirty million, six hundred sixty-one thousand, one hundred fifty".