1225158580 has 24 divisors (see below), whose sum is σ = 2632668192. Its totient is φ = 478666272.

The previous prime is 1225158577. The next prime is 1225158581. The reversal of 1225158580 is 858515221.

It is a super-2 number, since 2×1225158580² = 3002027092295232800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225158581) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 711442 + ... + 713161.

It is an arithmetic number, because the mean of its divisors is an integer number (109694508).

Almost surely, 2^1225158580 is an apocalyptic number.

1225158580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1225158580 is an abundant number, since it is smaller than the sum of its proper divisors (1407509612).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1225158580 is a wasteful number, since it uses less digits than its factorization.

1225158580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1424655 (or 1424653 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 37.

The square root of 1225158580 is about 35002.2653552595. The cubic root of 1225158580 is about 1070.0336496245.

The spelling of 1225158580 in words is "one billion, two hundred twenty-five million, one hundred fifty-eight thousand, five hundred eighty".