30826145 has 12 divisors (see below), whose sum is σ = 43031124. Its totient is φ = 21137760.

The previous prime is 30826139. The next prime is 30826157. The reversal of 30826145 is 54162803.

It can be written as a sum of positive squares in 2 ways, for example, as 10504081 + 20322064 = 3241^2 + 4508^2 .

It is not a de Polignac number, because 30826145 - 2⁸ = 30825889 is a prime.

It is a super-2 number, since 2×30826145² = 1900502431122050, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62666 + ... + 63155.

It is an arithmetic number, because the mean of its divisors is an integer number (3585927).

Almost surely, 2^30826145 is an apocalyptic number.

30826145 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30826145 is a deficient number, since it is larger than the sum of its proper divisors (12204979).

30826145 is a wasteful number, since it uses less digits than its factorization.

30826145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125840 (or 125833 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 30826145 is about 5552.1297715381. The cubic root of 30826145 is about 313.5497115897.

Adding to 30826145 its reverse (54162803), we get a palindrome (84988948).

The spelling of 30826145 in words is "thirty million, eight hundred twenty-six thousand, one hundred forty-five".