1256148 has 30 divisors (see below), whose sum is σ = 3284666. Its totient is φ = 418608.

The previous prime is 1256107. The next prime is 1256149. The reversal of 1256148 is 8416521.

It can be written as a sum of positive squares in only one way, i.e., 944784 + 311364 = 972^2 + 558^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1256149) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1615 + ... + 2262.

2^1256148 is an apocalyptic number.

1256148 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1256148 is an abundant number, since it is smaller than the sum of its proper divisors (2028518).

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

1256148 is a wasteful number, since it uses less digits than its factorization.

1256148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3893 (or 3882 counting only the distinct ones).

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

The square root of 1256148 is about 1120.7800854762. The cubic root of 1256148 is about 107.8980519432.

The spelling of 1256148 in words is "one million, two hundred fifty-six thousand, one hundred forty-eight".