30513047 has 2 divisors, whose sum is σ = 30513048. Its totient is φ = 30513046.

The previous prime is 30512987. The next prime is 30513097. The reversal of 30513047 is 74031503.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30513047 - 2⁶ = 30512983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30513097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15256523 + 15256524.

It is an arithmetic number, because the mean of its divisors is an integer number (15256524).

Almost surely, 2^30513047 is an apocalyptic number.

30513047 is a deficient number, since it is larger than the sum of its proper divisors (1).

30513047 is an equidigital number, since it uses as much as digits as its factorization.

30513047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 30513047 is about 5523.8616021765. The cubic root of 30513047 is about 312.4845329945.

The spelling of 30513047 in words is "thirty million, five hundred thirteen thousand, forty-seven".