1292481 has 6 divisors (see below), whose sum is σ = 1866930. Its totient is φ = 861648.

The previous prime is 1292477. The next prime is 1292491. The reversal of 1292481 is 1842921.

It can be written as a sum of positive squares in only one way, i.e., 921600 + 370881 = 960^2 + 609^2 .

It is not a de Polignac number, because 1292481 - 2² = 1292477 is a prime.

It is a super-2 number, since 2×1292481² = 3341014270722, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1292441) 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, 71796 + ... + 71813.

It is an arithmetic number, because the mean of its divisors is an integer number (311155).

2^1292481 is an apocalyptic number.

It is an amenable number.

1292481 is a deficient number, since it is larger than the sum of its proper divisors (574449).

1292481 is a wasteful number, since it uses less digits than its factorization.

1292481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143615 (or 143612 counting only the distinct ones).

The product of its digits is 1152, while the sum is 27.

The square root of 1292481 is about 1136.8733438691. The cubic root of 1292481 is about 108.9284663773.

The spelling of 1292481 in words is "one million, two hundred ninety-two thousand, four hundred eighty-one".