30451066 has 4 divisors (see below), whose sum is σ = 45676602. Its totient is φ = 15225532.

The previous prime is 30451061. The next prime is 30451067. The reversal of 30451066 is 66015403.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 26822041 + 3629025 = 5179^2 + 1905^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 30451066.

It is not an unprimeable number, because it can be changed into a prime (30451061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7612765 + ... + 7612768.

Almost surely, 2^30451066 is an apocalyptic number.

30451066 is a deficient number, since it is larger than the sum of its proper divisors (15225536).

30451066 is a wasteful number, since it uses less digits than its factorization.

30451066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15225535.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 30451066 is about 5518.2484539934. The cubic root of 30451066 is about 312.2728068131.

Adding to 30451066 its reverse (66015403), we get a palindrome (96466469).

The spelling of 30451066 in words is "thirty million, four hundred fifty-one thousand, sixty-six".