1355224123 has 8 divisors (see below), whose sum is σ = 1518384240. Its totient is φ = 1198723680.

The previous prime is 1355224121. The next prime is 1355224183. The reversal of 1355224123 is 3214225531.

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

It is not a de Polignac number, because 1355224123 - 2¹ = 1355224121 is a prime.

It is a super-2 number, since 2×1355224123² = 3673264847122238258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1355224091 and 1355224100.

It is not an unprimeable number, because it can be changed into a prime (1355224121) 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, 1664488 + ... + 1665301.

It is an arithmetic number, because the mean of its divisors is an integer number (189798030).

Almost surely, 2^1355224123 is an apocalyptic number.

1355224123 is a deficient number, since it is larger than the sum of its proper divisors (163160117).

1355224123 is a wasteful number, since it uses less digits than its factorization.

1355224123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3329837.

The product of its digits is 7200, while the sum is 28.

The square root of 1355224123 is about 36813.3688080838. The cubic root of 1355224123 is about 1106.6332319317.

Adding to 1355224123 its reverse (3214225531), we get a palindrome (4569449654).

It can be divided in two parts, 13552 and 24123, that added together give a triangular number (37675 = T₂₇₄).

The spelling of 1355224123 in words is "one billion, three hundred fifty-five million, two hundred twenty-four thousand, one hundred twenty-three".