1125722 has 16 divisors (see below), whose sum is σ = 1882440. Its totient is φ = 501312.

The previous prime is 1125713. The next prime is 1125739. The reversal of 1125722 is 2275211.

It is a Cunningham number, because it is equal to 1061²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 982081 + 143641 = 991^2 + 379^2 .

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1125694 and 1125703.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8 + ... + 1500.

2^1125722 is an apocalyptic number.

1125722 is a deficient number, since it is larger than the sum of its proper divisors (756718).

1125722 is a wasteful number, since it uses less digits than its factorization.

1125722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1537.

The product of its digits is 280, while the sum is 20.

The square root of 1125722 is about 1061.0004712534. Note that the first 3 decimals coincide. The cubic root of 1125722 is about 104.0264355875.

The spelling of 1125722 in words is "one million, one hundred twenty-five thousand, seven hundred twenty-two".