1153972 has 6 divisors (see below), whose sum is σ = 2019458. Its totient is φ = 576984.

The previous prime is 1153967. The next prime is 1153973. The reversal of 1153972 is 2793511.

It can be written as a sum of positive squares in only one way, i.e., 929296 + 224676 = 964^2 + 474^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1153972.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1153973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144243 + ... + 144250.

2^1153972 is an apocalyptic number.

It is an amenable number.

1153972 is a deficient number, since it is larger than the sum of its proper divisors (865486).

1153972 is a wasteful number, since it uses less digits than its factorization.

1153972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288497 (or 288495 counting only the distinct ones).

The product of its digits is 1890, while the sum is 28.

The square root of 1153972 is about 1074.2308876587. The cubic root of 1153972 is about 104.8894376654.

It can be divided in two parts, 11539 and 72, that added together give a palindrome (11611).

The spelling of 1153972 in words is "one million, one hundred fifty-three thousand, nine hundred seventy-two".