9145934641 has 2 divisors, whose sum is σ = 9145934642. Its totient is φ = 9145934640.

The previous prime is 9145934621. The next prime is 9145934663. The reversal of 9145934641 is 1464395419.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8164929600 + 981005041 = 90360^2 + 31321^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9145934641 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9145934591 and 9145934600.

It is not a weakly prime, because it can be changed into another prime (9145934621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4572967320 + 4572967321.

It is an arithmetic number, because the mean of its divisors is an integer number (4572967321).

Almost surely, 2^9145934641 is an apocalyptic number.

It is an amenable number.

9145934641 is a deficient number, since it is larger than the sum of its proper divisors (1).

9145934641 is an equidigital number, since it uses as much as digits as its factorization.

9145934641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 466560, while the sum is 46.

The square root of 9145934641 is about 95634.3800157663. The cubic root of 9145934641 is about 2091.2664226992.

The spelling of 9145934641 in words is "nine billion, one hundred forty-five million, nine hundred thirty-four thousand, six hundred forty-one".