1255261 has 8 divisors (see below), whose sum is σ = 1449344. Its totient is φ = 1064880.
The previous prime is 1255259. The next prime is 1255279. The reversal of 1255261 is 1625521.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 1255261 - 21 = 1255259 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1255201) 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, 150 + ... + 1591.
It is an arithmetic number, because the mean of its divisors is an integer number (181168).
21255261 is an apocalyptic number.
It is an amenable number.
1255261 is a deficient number, since it is larger than the sum of its proper divisors (194083).
1255261 is a wasteful number, since it uses less digits than its factorization.
1255261 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1851.
The product of its digits is 600, while the sum is 22.
The square root of 1255261 is about 1120.3843090654. The cubic root of 1255261 is about 107.8726493877.
The spelling of 1255261 in words is "one million, two hundred fifty-five thousand, two hundred sixty-one".
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