1261492 has 6 divisors (see below), whose sum is σ = 2207618. Its totient is φ = 630744.

The previous prime is 1261489. The next prime is 1261523. The reversal of 1261492 is 2941621.

It can be written as a sum of positive squares in only one way, i.e., 1175056 + 86436 = 1084^2 + 294^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157683 + ... + 157690.

2^1261492 is an apocalyptic number.

It is an amenable number.

1261492 is a deficient number, since it is larger than the sum of its proper divisors (946126).

1261492 is a wasteful number, since it uses less digits than its factorization.

1261492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315377 (or 315375 counting only the distinct ones).

The product of its digits is 864, while the sum is 25.

The square root of 1261492 is about 1123.1616090305. The cubic root of 1261492 is about 108.0508448292.

It can be divided in two parts, 12 and 61492, that added together give a square (61504 = 248²).

The spelling of 1261492 in words is "one million, two hundred sixty-one thousand, four hundred ninety-two".