1972054505 has 8 divisors (see below), whose sum is σ = 2366704392. Its totient is φ = 1577484288.

The previous prime is 1972054493. The next prime is 1972054547. The reversal of 1972054505 is 5054502791.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 787868761 + 1184185744 = 28069^2 + 34412^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1972054505 - 2⁴ = 1972054489 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 81467 + ... + 102863.

It is an arithmetic number, because the mean of its divisors is an integer number (295838049).

Almost surely, 2^1972054505 is an apocalyptic number.

It is an amenable number.

1972054505 is a deficient number, since it is larger than the sum of its proper divisors (394649887).

1972054505 is a wasteful number, since it uses less digits than its factorization.

1972054505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39835.

The product of its (nonzero) digits is 63000, while the sum is 38.

The square root of 1972054505 is about 44407.8203135439. The cubic root of 1972054505 is about 1254.0253179382.

The spelling of 1972054505 in words is "one billion, nine hundred seventy-two million, fifty-four thousand, five hundred five".