1223160015 has 64 divisors (see below), whose sum is σ = 2445189120. Its totient is φ = 507239040.

The previous prime is 1223159981. The next prime is 1223160031. The reversal of 1223160015 is 5100613221.

It is not a de Polignac number, because 1223160015 - 2⁷ = 1223159887 is a prime.

It is a super-2 number, since 2×1223160015² = 2992240844589600450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 1223159973 and 1223160000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 760342 + ... + 761948.

It is an arithmetic number, because the mean of its divisors is an integer number (38206080).

Almost surely, 2^1223160015 is an apocalyptic number.

1223160015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1223160015 is a deficient number, since it is larger than the sum of its proper divisors (1222029105).

1223160015 is a wasteful number, since it uses less digits than its factorization.

1223160015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2292.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 1223160015 is about 34973.7046221872. The cubic root of 1223160015 is about 1069.4514948645.

Adding to 1223160015 its reverse (5100613221), we get a palindrome (6323773236).

The spelling of 1223160015 in words is "one billion, two hundred twenty-three million, one hundred sixty thousand, fifteen".