1225884530 has 16 divisors (see below), whose sum is σ = 2376330264. Its totient is φ = 452634240.

The previous prime is 1225884529. The next prime is 1225884557. The reversal of 1225884530 is 354885221.

It can be written as a sum of positive squares in 4 ways, for example, as 939361201 + 286523329 = 30649^2 + 16927^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4714811 + ... + 4715070.

Almost surely, 2^1225884530 is an apocalyptic number.

1225884530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1225884530 is a deficient number, since it is larger than the sum of its proper divisors (1150445734).

1225884530 is a wasteful number, since it uses less digits than its factorization.

1225884530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9429901.

The product of its (nonzero) digits is 76800, while the sum is 38.

The square root of 1225884530 is about 35012.6338626502. The cubic root of 1225884530 is about 1070.2449522171.

The spelling of 1225884530 in words is "one billion, two hundred twenty-five million, eight hundred eighty-four thousand, five hundred thirty".