1972144 has 10 divisors (see below), whose sum is σ = 3821060. Its totient is φ = 986064.

The previous prime is 1972133. The next prime is 1972147. The reversal of 1972144 is 4412791.

It is a plaindrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (1972147) 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, 61614 + ... + 61645.

It is an arithmetic number, because the mean of its divisors is an integer number (382106).

2^1972144 is an apocalyptic number.

It is an amenable number.

1972144 is a deficient number, since it is larger than the sum of its proper divisors (1848916).

1972144 is a wasteful number, since it uses less digits than its factorization.

1972144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123267 (or 123261 counting only the distinct ones).

The product of its digits is 2016, while the sum is 28.

The square root of 1972144 is about 1404.3304454437. The cubic root of 1972144 is about 125.4044287545.

It can be divided in two parts, 1972 and 144, that added together give a square (2116 = 46²).

The spelling of 1972144 in words is "one million, nine hundred seventy-two thousand, one hundred forty-four".