1251080 has 16 divisors (see below), whose sum is σ = 2815020. Its totient is φ = 500416.

The previous prime is 1251071. The next prime is 1251083. The reversal of 1251080 is 801521.

It can be written as a sum of positive squares in 2 ways, for example, as 1249924 + 1156 = 1118^2 + 34^2 .

It is not an unprimeable number, because it can be changed into a prime (1251083) 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, 15599 + ... + 15678.

2^1251080 is an apocalyptic number.

1251080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1251080 is an abundant number, since it is smaller than the sum of its proper divisors (1563940).

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

1251080 is a wasteful number, since it uses less digits than its factorization.

1251080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31288 (or 31284 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 1251080 is about 1118.5168751521. The cubic root of 1251080 is about 107.7527494305.

The spelling of 1251080 in words is "one million, two hundred fifty-one thousand, eighty".