30481087 has 24 divisors (see below), whose sum is σ = 38623200. Its totient is φ = 23841216.

The previous prime is 30481063. The next prime is 30481097. The reversal of 30481087 is 78018403.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-30481087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30481057) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69214 + ... + 69652.

It is an arithmetic number, because the mean of its divisors is an integer number (1609300).

Almost surely, 2^30481087 is an apocalyptic number.

30481087 is a deficient number, since it is larger than the sum of its proper divisors (8142113).

30481087 is a wasteful number, since it uses less digits than its factorization.

30481087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575 (or 568 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 30481087 is about 5520.9679404974. The cubic root of 30481087 is about 312.3753939479.

The spelling of 30481087 in words is "thirty million, four hundred eighty-one thousand, eighty-seven".