1224155454 has 8 divisors (see below), whose sum is σ = 2448310920. Its totient is φ = 408051816.

The previous prime is 1224155447. The next prime is 1224155461. The reversal of 1224155454 is 4545514221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1224155447) and next prime (1224155461).

It is a sphenic number, since it is the product of 3 distinct primes.

1224155454 is an admirable number.

It is a super-2 number, since 2×1224155454² = 2997113151115892232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102012949 + ... + 102012960.

It is an arithmetic number, because the mean of its divisors is an integer number (306038865).

Almost surely, 2^1224155454 is an apocalyptic number.

1224155454 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1224155454 is a wasteful number, since it uses less digits than its factorization.

1224155454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204025914.

The product of its digits is 32000, while the sum is 33.

The square root of 1224155454 is about 34987.9329769565. The cubic root of 1224155454 is about 1069.7415318866.

Adding to 1224155454 its reverse (4545514221), we get a palindrome (5769669675).

The spelling of 1224155454 in words is "one billion, two hundred twenty-four million, one hundred fifty-five thousand, four hundred fifty-four".