1223124550 has 12 divisors (see below), whose sum is σ = 2275011756. Its totient is φ = 489249800.

The previous prime is 1223124547. The next prime is 1223124607. The reversal of 1223124550 is 554213221.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12231196 + ... + 12231295.

It is an arithmetic number, because the mean of its divisors is an integer number (189584313).

Almost surely, 2^1223124550 is an apocalyptic number.

1223124550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1223124550 is a deficient number, since it is larger than the sum of its proper divisors (1051887206).

1223124550 is a wasteful number, since it uses less digits than its factorization.

1223124550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24462503 (or 24462498 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 1223124550 is about 34973.1975947296. The cubic root of 1223124550 is about 1069.4411586688.

Adding to 1223124550 its reverse (554213221), we get a palindrome (1777337771).

The spelling of 1223124550 in words is "one billion, two hundred twenty-three million, one hundred twenty-four thousand, five hundred fifty".