1264172 has 48 divisors (see below), whose sum is σ = 2860032. Its totient is φ = 475200.

The previous prime is 1264129. The next prime is 1264177. The reversal of 1264172 is 2714621.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (1264177) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8297 + ... + 8447.

It is an arithmetic number, because the mean of its divisors is an integer number (59584).

2^1264172 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1264172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1430016).

1264172 is an abundant number, since it is smaller than the sum of its proper divisors (1595860).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1264172 is a wasteful number, since it uses less digits than its factorization.

1264172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198 (or 196 counting only the distinct ones).

The product of its digits is 672, while the sum is 23.

The square root of 1264172 is about 1124.3540367696. The cubic root of 1264172 is about 108.1273075788.

Adding to 1264172 its reverse (2714621), we get a palindrome (3978793).

The spelling of 1264172 in words is "one million, two hundred sixty-four thousand, one hundred seventy-two".