3972147253 has 2 divisors, whose sum is σ = 3972147254. Its totient is φ = 3972147252.

The previous prime is 3972147233. The next prime is 3972147259. The reversal of 3972147253 is 3527412793.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3966732324 + 5414929 = 62982^2 + 2327^2 .

It is a cyclic number.

It is not a de Polignac number, because 3972147253 - 2⁹ = 3972146741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3972147259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1986073626 + 1986073627.

It is an arithmetic number, because the mean of its divisors is an integer number (1986073627).

Almost surely, 2^3972147253 is an apocalyptic number.

It is an amenable number.

3972147253 is a deficient number, since it is larger than the sum of its proper divisors (1).

3972147253 is an equidigital number, since it uses as much as digits as its factorization.

3972147253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 317520, while the sum is 43.

The square root of 3972147253 is about 63024.9732487052. The cubic root of 3972147253 is about 1583.7080102209.

The spelling of 3972147253 in words is "three billion, nine hundred seventy-two million, one hundred forty-seven thousand, two hundred fifty-three".