30146136 has 32 divisors (see below), whose sum is σ = 77798400. Its totient is φ = 9724320.

The previous prime is 30146131. The next prime is 30146147. The reversal of 30146136 is 63164103.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30146131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19516 + ... + 21003.

It is an arithmetic number, because the mean of its divisors is an integer number (2431200).

Almost surely, 2^30146136 is an apocalyptic number.

It is an amenable number.

30146136 is an abundant number, since it is smaller than the sum of its proper divisors (47652264).

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

30146136 is a wasteful number, since it uses less digits than its factorization.

30146136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40559 (or 40555 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 30146136 is about 5490.5496992560. The cubic root of 30146136 is about 311.2269652797.

The spelling of 30146136 in words is "thirty million, one hundred forty-six thousand, one hundred thirty-six".