30145371 has 4 divisors (see below), whose sum is σ = 40193832. Its totient is φ = 20096912.

The previous prime is 30145333. The next prime is 30145439. The reversal of 30145371 is 17354103.

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

It is a cyclic number.

It is not a de Polignac number, because 30145371 - 2¹³ = 30137179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30145321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5024226 + ... + 5024231.

It is an arithmetic number, because the mean of its divisors is an integer number (10048458).

Almost surely, 2^30145371 is an apocalyptic number.

30145371 is a deficient number, since it is larger than the sum of its proper divisors (10048461).

30145371 is a wasteful number, since it uses less digits than its factorization.

30145371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10048460.

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 30145371 is about 5490.4800336583. The cubic root of 30145371 is about 311.2243326522.

Adding to 30145371 its reverse (17354103), we get a palindrome (47499474).

It can be divided in two parts, 3014 and 5371, that added together give a triangular number (8385 = T₁₂₉).

The spelling of 30145371 in words is "thirty million, one hundred forty-five thousand, three hundred seventy-one".