1225162460 has 24 divisors (see below), whose sum is σ = 2724185520. Its totient is φ = 461237504.

The previous prime is 1225162423. The next prime is 1225162481. The reversal of 1225162460 is 642615221.

It is a congruent number.

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, 1801370 + ... + 1802049.

It is an arithmetic number, because the mean of its divisors is an integer number (113507730).

Almost surely, 2^1225162460 is an apocalyptic number.

1225162460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1225162460 is an abundant number, since it is smaller than the sum of its proper divisors (1499023060).

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

1225162460 is a wasteful number, since it uses less digits than its factorization.

1225162460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3603445 (or 3603443 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 1225162460 is about 35002.3207801997. The cubic root of 1225162460 is about 1070.0347791997.

Adding to 1225162460 its reverse (642615221), we get a palindrome (1867777681).

The spelling of 1225162460 in words is "one billion, two hundred twenty-five million, one hundred sixty-two thousand, four hundred sixty".