1229572 has 12 divisors (see below), whose sum is σ = 2174620. Its totient is φ = 608256.

The previous prime is 1229563. The next prime is 1229581. The reversal of 1229572 is 2759221.

It is an interprime number because it is at equal distance from previous prime (1229563) and next prime (1229581).

It can be written as a sum of positive squares in 2 ways, for example, as 799236 + 430336 = 894^2 + 656^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1229572.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1197 + ... + 1972.

2^1229572 is an apocalyptic number.

It is an amenable number.

1229572 is a deficient number, since it is larger than the sum of its proper divisors (945048).

1229572 is a wasteful number, since it uses less digits than its factorization.

1229572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3270 (or 3268 counting only the distinct ones).

The product of its digits is 2520, while the sum is 28.

The square root of 1229572 is about 1108.8606765505. The cubic root of 1229572 is about 107.1316979701.

It can be divided in two parts, 12 and 29572, that added together give a square (29584 = 172²).

The spelling of 1229572 in words is "one million, two hundred twenty-nine thousand, five hundred seventy-two".