30641954 has 12 divisors (see below), whose sum is σ = 53467254. Its totient is φ = 13132224.

The previous prime is 30641953. The next prime is 30641959. The reversal of 30641954 is 45914603.

It can be written as a sum of positive squares in only one way, i.e., 28376929 + 2265025 = 5327^2 + 1505^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 30641954.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30641953) 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 in 5 ways as a sum of consecutive naturals, for example, 156239 + ... + 156434.

Almost surely, 2^30641954 is an apocalyptic number.

30641954 is a deficient number, since it is larger than the sum of its proper divisors (22825300).

30641954 is a wasteful number, since it uses less digits than its factorization.

30641954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312689 (or 312682 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 30641954 is about 5535.5175006498. The cubic root of 30641954 is about 312.9239608828.

The spelling of 30641954 in words is "thirty million, six hundred forty-one thousand, nine hundred fifty-four".