1225674165 has 8 divisors (see below), whose sum is σ = 1961078688. Its totient is φ = 653692880.

The previous prime is 1225674139. The next prime is 1225674169. The reversal of 1225674165 is 5614765221.

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

It is not a de Polignac number, because 1225674165 - 2⁸ = 1225673909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225674169) 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, 40855791 + ... + 40855820.

It is an arithmetic number, because the mean of its divisors is an integer number (245134836).

Almost surely, 2^1225674165 is an apocalyptic number.

1225674165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1225674165 is a deficient number, since it is larger than the sum of its proper divisors (735404523).

1225674165 is an equidigital number, since it uses as much as digits as its factorization.

1225674165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81711619.

The product of its digits is 100800, while the sum is 39.

The square root of 1225674165 is about 35009.6296038676. The cubic root of 1225674165 is about 1070.1837297683.

The spelling of 1225674165 in words is "one billion, two hundred twenty-five million, six hundred seventy-four thousand, one hundred sixty-five".