1225499830 has 16 divisors (see below), whose sum is σ = 2206646064. Its totient is φ = 490034080.

The previous prime is 1225499827. The next prime is 1225499839. The reversal of 1225499830 is 389945221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225499839) 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, 12900 + ... + 51160.

It is an arithmetic number, because the mean of its divisors is an integer number (137915379).

Almost surely, 2^1225499830 is an apocalyptic number.

1225499830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1225499830 is a deficient number, since it is larger than the sum of its proper divisors (981146234).

1225499830 is a wasteful number, since it uses less digits than its factorization.

1225499830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41471.

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 1225499830 is about 35007.1397003526. The cubic root of 1225499830 is about 1070.1329878086.

The spelling of 1225499830 in words is "one billion, two hundred twenty-five million, four hundred ninety-nine thousand, eight hundred thirty".