1228415167 has 4 divisors (see below), whose sum is σ = 1403903056. Its totient is φ = 1052927280.

The previous prime is 1228415143. The next prime is 1228415173. The reversal of 1228415167 is 7615148221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7615148221 = 139 ⋅54785239.

It is a cyclic number.

It is not a de Polignac number, because 1228415167 - 2⁷ = 1228415039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1228415197) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87743934 + ... + 87743947.

It is an arithmetic number, because the mean of its divisors is an integer number (350975764).

Almost surely, 2^1228415167 is an apocalyptic number.

1228415167 is a deficient number, since it is larger than the sum of its proper divisors (175487889).

1228415167 is an equidigital number, since it uses as much as digits as its factorization.

1228415167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175487888.

The product of its digits is 26880, while the sum is 37.

The square root of 1228415167 is about 35048.7541433358. The cubic root of 1228415167 is about 1070.9808942683.

The spelling of 1228415167 in words is "one billion, two hundred twenty-eight million, four hundred fifteen thousand, one hundred sixty-seven".