1142772 has 12 divisors (see below), whose sum is σ = 2666496. Its totient is φ = 380920.

The previous prime is 1142759. The next prime is 1142773. The reversal of 1142772 is 2772411.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×1142772³ = 4477133322375850944, which contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47604 + ... + 47627.

It is an arithmetic number, because the mean of its divisors is an integer number (222208).

2^1142772 is an apocalyptic number.

1142772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1142772 is an abundant number, since it is smaller than the sum of its proper divisors (1523724).

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

1142772 is a wasteful number, since it uses less digits than its factorization.

1142772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95238 (or 95236 counting only the distinct ones).

The product of its digits is 784, while the sum is 24.

The square root of 1142772 is about 1069.0051449829. The cubic root of 1142772 is about 104.5489952859.

The spelling of 1142772 in words is "one million, one hundred forty-two thousand, seven hundred seventy-two".