1225477450 has 24 divisors (see below), whose sum is σ = 2290210560. Its totient is φ = 487863600.

The previous prime is 1225477427. The next prime is 1225477459. The reversal of 1225477450 is 547745221.

It is not an unprimeable number, because it can be changed into a prime (1225477459) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 47530 + ... + 68629.

It is an arithmetic number, because the mean of its divisors is an integer number (95425440).

Almost surely, 2^1225477450 is an apocalyptic number.

1225477450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1225477450 is a deficient number, since it is larger than the sum of its proper divisors (1064733110).

1225477450 is a wasteful number, since it uses less digits than its factorization.

1225477450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116382 (or 116377 counting only the distinct ones).

The product of its (nonzero) digits is 78400, while the sum is 37.

The square root of 1225477450 is about 35006.8200498132. The cubic root of 1225477450 is about 1070.1264735355.

The spelling of 1225477450 in words is "one billion, two hundred twenty-five million, four hundred seventy-seven thousand, four hundred fifty".