1965146147 has 2 divisors, whose sum is σ = 1965146148. Its totient is φ = 1965146146.

The previous prime is 1965146107. The next prime is 1965146149. The reversal of 1965146147 is 7416415691.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1965146147 - 2¹⁴ = 1965129763 is a prime.

Together with 1965146149, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1965146098 and 1965146107.

It is not a weakly prime, because it can be changed into another prime (1965146149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 982573073 + 982573074.

It is an arithmetic number, because the mean of its divisors is an integer number (982573074).

Almost surely, 2^1965146147 is an apocalyptic number.

1965146147 is a deficient number, since it is larger than the sum of its proper divisors (1).

1965146147 is an equidigital number, since it uses as much as digits as its factorization.

1965146147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 44.

The square root of 1965146147 is about 44329.9689487823. The cubic root of 1965146147 is about 1252.5592679022.

The spelling of 1965146147 in words is "one billion, nine hundred sixty-five million, one hundred forty-six thousand, one hundred forty-seven".