1224145104 has 80 divisors (see below), whose sum is σ = 3892167552. Its totient is φ = 322850304.

The previous prime is 1224145099. The next prime is 1224145121. The reversal of 1224145104 is 4015414221.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135759 + ... + 144494.

Almost surely, 2^1224145104 is an apocalyptic number.

1224145104 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1224145104 is an abundant number, since it is smaller than the sum of its proper divisors (2668022448).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1224145104 is a wasteful number, since it uses less digits than its factorization.

1224145104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280284 (or 280278 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 1224145104 is about 34987.7850685064. The cubic root of 1224145104 is about 1069.7385170581.

Adding to 1224145104 its reverse (4015414221), we get a palindrome (5239559325).

The spelling of 1224145104 in words is "one billion, two hundred twenty-four million, one hundred forty-five thousand, one hundred four".