1972300251 has 16 divisors (see below), whose sum is σ = 2680859168. Its totient is φ = 1289433600.

The previous prime is 1972300249. The next prime is 1972300273. The reversal of 1972300251 is 1520032791.

It is not a de Polignac number, because 1972300251 - 2¹ = 1972300249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1972300201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45681 + ... + 77661.

It is an arithmetic number, because the mean of its divisors is an integer number (167553698).

Almost surely, 2^1972300251 is an apocalyptic number.

1972300251 is a deficient number, since it is larger than the sum of its proper divisors (708558917).

1972300251 is a wasteful number, since it uses less digits than its factorization.

1972300251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32382.

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 1972300251 is about 44410.5871499128. The cubic root of 1972300251 is about 1254.0774055630.

The spelling of 1972300251 in words is "one billion, nine hundred seventy-two million, three hundred thousand, two hundred fifty-one".