1264158 has 48 divisors (see below), whose sum is σ = 3194880. Its totient is φ = 353808.

The previous prime is 1264129. The next prime is 1264177. The reversal of 1264158 is 8514621.

1264158 is a `hidden beast` number, since 12 + 641 + 5 + 8 = 666.

1264158 is a modest number, since divided by 4158 gives 126 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9891 + ... + 10017.

It is an arithmetic number, because the mean of its divisors is an integer number (66560).

2^1264158 is an apocalyptic number.

1264158 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1264158, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1597440).

1264158 is an abundant number, since it is smaller than the sum of its proper divisors (1930722).

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

1264158 is a wasteful number, since it uses less digits than its factorization.

1264158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221 (or 218 counting only the distinct ones).

The product of its digits is 1920, while the sum is 27.

The square root of 1264158 is about 1124.3478109553. The cubic root of 1264158 is about 108.1269084275.

Adding to 1264158 its reverse (8514621), we get a palindrome (9778779).

The spelling of 1264158 in words is "one million, two hundred sixty-four thousand, one hundred fifty-eight".