1972450931 has 8 divisors (see below), whose sum is σ = 2152322928. Its totient is φ = 1792672000.

The previous prime is 1972450913. The next prime is 1972450937. The reversal of 1972450931 is 1390542791.

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 1972450931 - 2⁶ = 1972450867 is a prime.

It is a super-2 number, since 2×1972450931² = 7781125350405533522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1972450937) 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, 25511 + ... + 67791.

It is an arithmetic number, because the mean of its divisors is an integer number (269040366).

Almost surely, 2^1972450931 is an apocalyptic number.

1972450931 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1972450931 is a deficient number, since it is larger than the sum of its proper divisors (179871997).

1972450931 is a wasteful number, since it uses less digits than its factorization.

1972450931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46533.

The product of its (nonzero) digits is 68040, while the sum is 41.

The square root of 1972450931 is about 44412.2835598441. The cubic root of 1972450931 is about 1254.1093411285.

The spelling of 1972450931 in words is "one billion, nine hundred seventy-two million, four hundred fifty thousand, nine hundred thirty-one".