1225136504 has 8 divisors (see below), whose sum is σ = 2297130960. Its totient is φ = 612568248.

The previous prime is 1225136491. The next prime is 1225136509. The reversal of 1225136504 is 4056315221.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225136509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76571024 + ... + 76571039.

It is an arithmetic number, because the mean of its divisors is an integer number (287141370).

Almost surely, 2^1225136504 is an apocalyptic number.

It is an amenable number.

1225136504 is a deficient number, since it is larger than the sum of its proper divisors (1071994456).

1225136504 is a wasteful number, since it uses less digits than its factorization.

1225136504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153142069 (or 153142065 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 1225136504 is about 35001.9500028213. The cubic root of 1225136504 is about 1070.0272226457.

The spelling of 1225136504 in words is "one billion, two hundred twenty-five million, one hundred thirty-six thousand, five hundred four".