1149972 has 24 divisors (see below), whose sum is σ = 2728992. Its totient is φ = 376800.

The previous prime is 1149971. The next prime is 1149979. The reversal of 1149972 is 2799411.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1149971) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 54 + ... + 1517.

It is an arithmetic number, because the mean of its divisors is an integer number (113708).

2^1149972 is an apocalyptic number.

1149972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1149972 is an abundant number, since it is smaller than the sum of its proper divisors (1579020).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1149972 is a wasteful number, since it uses less digits than its factorization.

1149972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1639 (or 1637 counting only the distinct ones).

The product of its digits is 4536, while the sum is 33.

The square root of 1149972 is about 1072.3674743296. The cubic root of 1149972 is about 104.7681050115.

The spelling of 1149972 in words is "one million, one hundred forty-nine thousand, nine hundred seventy-two".