30132146 has 12 divisors (see below), whose sum is σ = 49681086. Its totient is φ = 13696320.

The previous prime is 30132103. The next prime is 30132149. The reversal of 30132146 is 64123103.

It can be written as a sum of positive squares in only one way, i.e., 30129121 + 3025 = 5489^2 + 55^2 .

It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (30132149) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 62015 + ... + 62498.

Almost surely, 2^30132146 is an apocalyptic number.

30132146 is a deficient number, since it is larger than the sum of its proper divisors (19548940).

30132146 is a wasteful number, since it uses less digits than its factorization.

30132146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124537 (or 124526 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 30132146 is about 5489.2755441861. The cubic root of 30132146 is about 311.1788138466.

Adding to 30132146 its reverse (64123103), we get a palindrome (94255249).

The spelling of 30132146 in words is "thirty million, one hundred thirty-two thousand, one hundred forty-six".