1261080 has 96 divisors (see below), whose sum is σ = 4268160. Its totient is φ = 322560.

The previous prime is 1261079. The next prime is 1261081. The reversal of 1261080 is 801621.

It is an interprime number because it is at equal distance from previous prime (1261079) and next prime (1261081).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1261081) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11104 + ... + 11216.

It is an arithmetic number, because the mean of its divisors is an integer number (44460).

2^1261080 is an apocalyptic number.

1261080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1261080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2134080).

1261080 is an abundant number, since it is smaller than the sum of its proper divisors (3007080).

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

1261080 is a wasteful number, since it uses less digits than its factorization.

1261080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161 (or 154 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 1261080 is about 1122.9781832253. The cubic root of 1261080 is about 108.0390805070.

The spelling of 1261080 in words is "one million, two hundred sixty-one thousand, eighty".