30141556 has 12 divisors (see below), whose sum is σ = 54566820. Its totient is φ = 14551040.

The previous prime is 30141539. The next prime is 30141557. The reversal of 30141556 is 65514103.

It can be written as a sum of positive squares in 2 ways, for example, as 8797156 + 21344400 = 2966^2 + 4620^2 .

It is a super-2 number, since 2×30141556² = 1817026796202272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30141556.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30141557) 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, 129805 + ... + 130036.

It is an arithmetic number, because the mean of its divisors is an integer number (4547235).

Almost surely, 2^30141556 is an apocalyptic number.

It is an amenable number.

30141556 is a deficient number, since it is larger than the sum of its proper divisors (24425264).

30141556 is a wasteful number, since it uses less digits than its factorization.

30141556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259874 (or 259872 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 30141556 is about 5490.1326031345. The cubic root of 30141556 is about 311.2112032631.

Adding to 30141556 its reverse (65514103), we get a palindrome (95655659).

The spelling of 30141556 in words is "thirty million, one hundred forty-one thousand, five hundred fifty-six".