1972145150 has 24 divisors (see below), whose sum is σ = 3690709464. Its totient is φ = 784015200.

The previous prime is 1972145137. The next prime is 1972145167. The reversal of 1972145150 is 515412791.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1972145150.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 112841 + ... + 129140.

It is an arithmetic number, because the mean of its divisors is an integer number (153779561).

Almost surely, 2^1972145150 is an apocalyptic number.

1972145150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1972145150 is a deficient number, since it is larger than the sum of its proper divisors (1718564314).

1972145150 is a wasteful number, since it uses less digits than its factorization.

1972145150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242156 (or 242151 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 35.

The square root of 1972145150 is about 44408.8408990822. The cubic root of 1972145150 is about 1254.0445312988.

The spelling of 1972145150 in words is "one billion, nine hundred seventy-two million, one hundred forty-five thousand, one hundred fifty".