1290132 has 18 divisors (see below), whose sum is σ = 3261258. Its totient is φ = 430032.

The previous prime is 1290131. The next prime is 1290143. The reversal of 1290132 is 2310921.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 992016 + 298116 = 996^2 + 546^2 .

It is a tau number, because it is divible by the number of its divisors (18).

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 (1290131) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17883 + ... + 17954.

It is an arithmetic number, because the mean of its divisors is an integer number (181181).

2^1290132 is an apocalyptic number.

1290132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1290132 is an abundant number, since it is smaller than the sum of its proper divisors (1971126).

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

1290132 is a wasteful number, since it uses less digits than its factorization.

1290132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35847 (or 35842 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 1290132 is about 1135.8397774334. The cubic root of 1290132 is about 108.8624362294.

The spelling of 1290132 in words is "one million, two hundred ninety thousand, one hundred thirty-two".