1972145176 has 16 divisors (see below), whose sum is σ = 3701313000. Its totient is φ = 985128384.

The previous prime is 1972145171. The next prime is 1972145191. The reversal of 1972145176 is 6715412791.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1972145171) 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, 109110 + ... + 125893.

Almost surely, 2^1972145176 is an apocalyptic number.

It is an amenable number.

1972145176 is a deficient number, since it is larger than the sum of its proper divisors (1729167824).

1972145176 is a wasteful number, since it uses less digits than its factorization.

1972145176 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236058 (or 236054 counting only the distinct ones).

The product of its digits is 105840, while the sum is 43.

The square root of 1972145176 is about 44408.8411918167. The cubic root of 1972145176 is about 1254.0445368098.

The spelling of 1972145176 in words is "one billion, nine hundred seventy-two million, one hundred forty-five thousand, one hundred seventy-six".