9145956487 has 4 divisors (see below), whose sum is σ = 9155615256. Its totient is φ = 9136297720.

The previous prime is 9145956473. The next prime is 9145956517. The reversal of 9145956487 is 7846595419.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9145956487 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9145956427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4827964 + ... + 4829857.

It is an arithmetic number, because the mean of its divisors is an integer number (2288903814).

Almost surely, 2^9145956487 is an apocalyptic number.

9145956487 is a deficient number, since it is larger than the sum of its proper divisors (9658769).

9145956487 is an equidigital number, since it uses as much as digits as its factorization.

9145956487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9658768.

The product of its digits is 10886400, while the sum is 58.

The square root of 9145956487 is about 95634.4942319454. The cubic root of 9145956487 is about 2091.2680877658.

The spelling of 9145956487 in words is "nine billion, one hundred forty-five million, nine hundred fifty-six thousand, four hundred eighty-seven".