630509254 has 4 divisors (see below), whose sum is σ = 945763884. Its totient is φ = 315254626.

The previous prime is 630509227. The next prime is 630509263. The reversal of 630509254 is 452905036.

630509254 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157627312 + ... + 157627315.

It is an arithmetic number, because the mean of its divisors is an integer number (236440971).

Almost surely, 2^630509254 is an apocalyptic number.

630509254 is a deficient number, since it is larger than the sum of its proper divisors (315254630).

630509254 is a wasteful number, since it uses less digits than its factorization.

630509254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315254629.

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 630509254 is about 25109.9433292869. The cubic root of 630509254 is about 857.4928122883.

The spelling of 630509254 in words is "six hundred thirty million, five hundred nine thousand, two hundred fifty-four".