1291498 has 12 divisors (see below), whose sum is σ = 2098278. Its totient is φ = 595920.

The previous prime is 1291489. The next prime is 1291501. The reversal of 1291498 is 8941921.

It can be written as a sum of positive squares in 3 ways, for example, as 935089 + 356409 = 967^2 + 597^2 .

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1573 + ... + 2248.

2^1291498 is an apocalyptic number.

1291498 is a deficient number, since it is larger than the sum of its proper divisors (806780).

1291498 is a wasteful number, since it uses less digits than its factorization.

1291498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3849 (or 3836 counting only the distinct ones).

The product of its digits is 5184, while the sum is 34.

The square root of 1291498 is about 1136.4409355527. The cubic root of 1291498 is about 108.9008440913.

The spelling of 1291498 in words is "one million, two hundred ninety-one thousand, four hundred ninety-eight".