1225959 has 8 divisors (see below), whose sum is σ = 1868160. Its totient is φ = 700536.

The previous prime is 1225949. The next prime is 1225963. The reversal of 1225959 is 9595221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1225959 - 2⁵ = 1225927 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225909) 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, 29169 + ... + 29210.

It is an arithmetic number, because the mean of its divisors is an integer number (233520).

2^1225959 is an apocalyptic number.

1225959 is a deficient number, since it is larger than the sum of its proper divisors (642201).

1225959 is an equidigital number, since it uses as much as digits as its factorization.

1225959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58389.

The product of its digits is 8100, while the sum is 33.

The square root of 1225959 is about 1107.2303283418. The cubic root of 1225959 is about 107.0266623515.

It can be divided in two parts, 122595 and 9, that multiplied together give a triangular number (1103355 = T₁₄₈₅).

The spelling of 1225959 in words is "one million, two hundred twenty-five thousand, nine hundred fifty-nine".