1225820150 has 48 divisors (see below), whose sum is σ = 2417553600. Its totient is φ = 461129760.

The previous prime is 1225820149. The next prime is 1225820177. The reversal of 1225820150 is 510285221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 127409 + ... + 136691.

It is an arithmetic number, because the mean of its divisors is an integer number (50365700).

Almost surely, 2^1225820150 is an apocalyptic number.

1225820150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1225820150 is a deficient number, since it is larger than the sum of its proper divisors (1191733450).

1225820150 is a wasteful number, since it uses less digits than its factorization.

1225820150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9453 (or 9448 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 26.

The square root of 1225820150 is about 35011.7144681605. The cubic root of 1225820150 is about 1070.2262164731.

The spelling of 1225820150 in words is "one billion, two hundred twenty-five million, eight hundred twenty thousand, one hundred fifty".