1254156 has 12 divisors (see below), whose sum is σ = 2926392. Its totient is φ = 418048.

The previous prime is 1254151. The next prime is 1254157. The reversal of 1254156 is 6514521.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (1254151) 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, 52245 + ... + 52268.

It is an arithmetic number, because the mean of its divisors is an integer number (243866).

2^1254156 is an apocalyptic number.

It is an amenable number.

1254156 is an abundant number, since it is smaller than the sum of its proper divisors (1672236).

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

1254156 is a wasteful number, since it uses less digits than its factorization.

1254156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104520 (or 104518 counting only the distinct ones).

The product of its digits is 1200, while the sum is 24.

The square root of 1254156 is about 1119.8910661310. The cubic root of 1254156 is about 107.8409868433.

Adding to 1254156 its reverse (6514521), we get a palindrome (7768677).

The spelling of 1254156 in words is "one million, two hundred fifty-four thousand, one hundred fifty-six".