1290532 has 6 divisors (see below), whose sum is σ = 2258438. Its totient is φ = 645264.

The previous prime is 1290503. The next prime is 1290533. The reversal of 1290532 is 2350921.

It can be written as a sum of positive squares in only one way, i.e., 1290496 + 36 = 1136^2 + 6^2 .

It is not an unprimeable number, because it can be changed into a prime (1290533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161313 + ... + 161320.

2^1290532 is an apocalyptic number.

It is an amenable number.

1290532 is a deficient number, since it is larger than the sum of its proper divisors (967906).

1290532 is a wasteful number, since it uses less digits than its factorization.

1290532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322637 (or 322635 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 1290532 is about 1136.0158449599. The cubic root of 1290532 is about 108.8736858470.

The spelling of 1290532 in words is "one million, two hundred ninety thousand, five hundred thirty-two".