972288541 has 4 divisors (see below), whose sum is σ = 1111186912. Its totient is φ = 833390172.

The previous prime is 972288509. The next prime is 972288571. The reversal of 972288541 is 145882279.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 972288541 - 2⁵ = 972288509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 972288491 and 972288500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (972288571) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 69449175 + ... + 69449188.

It is an arithmetic number, because the mean of its divisors is an integer number (277796728).

Almost surely, 2^972288541 is an apocalyptic number.

It is an amenable number.

972288541 is a deficient number, since it is larger than the sum of its proper divisors (138898371).

972288541 is a wasteful number, since it uses less digits than its factorization.

972288541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138898370.

The product of its digits is 322560, while the sum is 46.

The square root of 972288541 is about 31181.5416713157. The cubic root of 972288541 is about 990.6761836325.

The spelling of 972288541 in words is "nine hundred seventy-two million, two hundred eighty-eight thousand, five hundred forty-one".