972271549 has 8 divisors (see below), whose sum is σ = 981552312. Its totient is φ = 963002880.

The previous prime is 972271543. The next prime is 972271567. The reversal of 972271549 is 945172279.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1512900 + 970758649 = 1230^2 + 31157^2 .

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 972271549 - 2³ = 972271541 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 972271499 and 972271508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (972271541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 283167 + ... + 286579.

It is an arithmetic number, because the mean of its divisors is an integer number (122694039).

Almost surely, 2^972271549 is an apocalyptic number.

It is an amenable number.

972271549 is a deficient number, since it is larger than the sum of its proper divisors (9280763).

972271549 is a wasteful number, since it uses less digits than its factorization.

972271549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6047.

The product of its digits is 317520, while the sum is 46.

The square root of 972271549 is about 31181.2692012368. The cubic root of 972271549 is about 990.6704124829.

It can be divided in two parts, 97 and 2271549, that added together give a triangular number (2271646 = T₂₁₃₁).

The spelling of 972271549 in words is "nine hundred seventy-two million, two hundred seventy-one thousand, five hundred forty-nine".