1223153545 has 8 divisors (see below), whose sum is σ = 1467996480. Its totient is φ = 978381360.

The previous prime is 1223153539. The next prime is 1223153551. The reversal of 1223153545 is 5453513221.

It is an interprime number because it is at equal distance from previous prime (1223153539) and next prime (1223153551).

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

It is not a de Polignac number, because 1223153545 - 2³ = 1223153537 is a prime.

It is a super-2 number, since 2×1223153545² = 2992209189292134050, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34186 + ... + 60124.

It is an arithmetic number, because the mean of its divisors is an integer number (183499560).

Almost surely, 2^1223153545 is an apocalyptic number.

It is an amenable number.

1223153545 is a deficient number, since it is larger than the sum of its proper divisors (244842935).

1223153545 is an equidigital number, since it uses as much as digits as its factorization.

1223153545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35375.

The product of its digits is 18000, while the sum is 31.

The square root of 1223153545 is about 34973.6121240000. The cubic root of 1223153545 is about 1069.4496092123.

Adding to 1223153545 its reverse (5453513221), we get a palindrome (6676666766).

The spelling of 1223153545 in words is "one billion, two hundred twenty-three million, one hundred fifty-three thousand, five hundred forty-five".