30126146 has 4 divisors (see below), whose sum is σ = 45189222. Its totient is φ = 15063072.

The previous prime is 30126143. The next prime is 30126169. The reversal of 30126146 is 64162103.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64162103 = 4813 ⋅13331.

It can be written as a sum of positive squares in only one way, i.e., 18395521 + 11730625 = 4289^2 + 3425^2 .

It is not an unprimeable number, because it can be changed into a prime (30126143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7531535 + ... + 7531538.

Almost surely, 2^30126146 is an apocalyptic number.

30126146 is a deficient number, since it is larger than the sum of its proper divisors (15063076).

30126146 is a wasteful number, since it uses less digits than its factorization.

30126146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15063075.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 30126146 is about 5488.7289967715. The cubic root of 30126146 is about 311.1581582006.

Adding to 30126146 its reverse (64162103), we get a palindrome (94288249).

The spelling of 30126146 in words is "thirty million, one hundred twenty-six thousand, one hundred forty-six".