147422971 has 2 divisors, whose sum is σ = 147422972. Its totient is φ = 147422970.

The previous prime is 147422969. The next prime is 147422987. The reversal of 147422971 is 179224741.

It is a weak prime.

It is an emirp because it is prime and its reverse (179224741) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 147422971 - 2¹ = 147422969 is a prime.

Together with 147422969, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 147422971.

It is not a weakly prime, because it can be changed into another prime (147422941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73711485 + 73711486.

It is an arithmetic number, because the mean of its divisors is an integer number (73711486).

Almost surely, 2^147422971 is an apocalyptic number.

147422971 is a deficient number, since it is larger than the sum of its proper divisors (1).

147422971 is an equidigital number, since it uses as much as digits as its factorization.

147422971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28224, while the sum is 37.

The square root of 147422971 is about 12141.7861536102. The cubic root of 147422971 is about 528.2689112196.

The spelling of 147422971 in words is "one hundred forty-seven million, four hundred twenty-two thousand, nine hundred seventy-one".