147820872131 has 2 divisors, whose sum is σ = 147820872132. Its totient is φ = 147820872130.

The previous prime is 147820872107. The next prime is 147820872139. The reversal of 147820872131 is 131278028741.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-147820872131 is a prime.

It is a super-2 number, since 2×147820872131² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (147820872139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73910436065 + 73910436066.

It is an arithmetic number, because the mean of its divisors is an integer number (73910436066).

Almost surely, 2^147820872131 is an apocalyptic number.

147820872131 is a deficient number, since it is larger than the sum of its proper divisors (1).

147820872131 is an equidigital number, since it uses as much as digits as its factorization.

147820872131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 150528, while the sum is 44.

The spelling of 147820872131 in words is "one hundred forty-seven billion, eight hundred twenty million, eight hundred seventy-two thousand, one hundred thirty-one".