1223154415 has 24 divisors (see below), whose sum is σ = 1710506160. Its totient is φ = 837220608.

The previous prime is 1223154409. The next prime is 1223154433. The reversal of 1223154415 is 5144513221.

It is not a de Polignac number, because 1223154415 - 2³ = 1223154407 is a prime.

It is a super-2 number, since 2×1223154415² = 2992213445867984450, 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 23 ways as a sum of consecutive naturals, for example, 141076 + ... + 149494.

It is an arithmetic number, because the mean of its divisors is an integer number (71271090).

Almost surely, 2^1223154415 is an apocalyptic number.

1223154415 is a deficient number, since it is larger than the sum of its proper divisors (487351745).

1223154415 is an equidigital number, since it uses as much as digits as its factorization.

1223154415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9031 (or 9024 counting only the distinct ones).

The product of its digits is 4800, while the sum is 28.

The square root of 1223154415 is about 34973.6245619467. The cubic root of 1223154415 is about 1069.4498627702.

Adding to 1223154415 its reverse (5144513221), we get a palindrome (6367667636).

The spelling of 1223154415 in words is "one billion, two hundred twenty-three million, one hundred fifty-four thousand, four hundred fifteen".