1972049245 has 8 divisors (see below), whose sum is σ = 2367608760. Its totient is φ = 1576872960.

The previous prime is 1972049243. The next prime is 1972049291. The reversal of 1972049245 is 5429402791.

It can be written as a sum of positive squares in 4 ways, for example, as 2553604 + 1969495641 = 1598^2 + 44379^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1972049245 - 2¹ = 1972049243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1972049243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84360 + ... + 105169.

It is an arithmetic number, because the mean of its divisors is an integer number (295951095).

Almost surely, 2^1972049245 is an apocalyptic number.

It is an amenable number.

1972049245 is a deficient number, since it is larger than the sum of its proper divisors (395559515).

1972049245 is a wasteful number, since it uses less digits than its factorization.

1972049245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191615.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 1972049245 is about 44407.7610897014. The cubic root of 1972049245 is about 1254.0242029962.

The spelling of 1972049245 in words is "one billion, nine hundred seventy-two million, forty-nine thousand, two hundred forty-five".