1225462520 has 32 divisors (see below), whose sum is σ = 2759847120. Its totient is φ = 489730560.

The previous prime is 1225462487. The next prime is 1225462531. The reversal of 1225462520 is 252645221.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31280 + ... + 58560.

Almost surely, 2^1225462520 is an apocalyptic number.

1225462520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1225462520 is an abundant number, since it is smaller than the sum of its proper divisors (1534384600).

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

1225462520 is a wasteful number, since it uses less digits than its factorization.

1225462520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28415 (or 28411 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 1225462520 is about 35006.6068050018. The cubic root of 1225462520 is about 1070.1221277318.

The spelling of 1225462520 in words is "one billion, two hundred twenty-five million, four hundred sixty-two thousand, five hundred twenty".