30145034 has 4 divisors (see below), whose sum is σ = 45217554. Its totient is φ = 15072516.

The previous prime is 30145033. The next prime is 30145043. The reversal of 30145034 is 43054103.

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., 24157225 + 5987809 = 4915^2 + 2447^2 .

It is a super-2 number, since 2×30145034² = 1817446149722312, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 30144997 and 30145015.

It is not an unprimeable number, because it can be changed into a prime (30145033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7536257 + ... + 7536260.

Almost surely, 2^30145034 is an apocalyptic number.

30145034 is a deficient number, since it is larger than the sum of its proper divisors (15072520).

30145034 is a wasteful number, since it uses less digits than its factorization.

30145034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15072519.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 30145034 is about 5490.4493440883. The cubic root of 30145034 is about 311.2231729054.

Adding to 30145034 its reverse (43054103), we get a palindrome (73199137).

The spelling of 30145034 in words is "thirty million, one hundred forty-five thousand, thirty-four".