9909514145 has 8 divisors (see below), whose sum is σ = 12115783656. Its totient is φ = 7778033536.

The previous prime is 9909514129. The next prime is 9909514187. The reversal of 9909514145 is 5414159099.

It can be written as a sum of positive squares in 4 ways, for example, as 133841761 + 9775672384 = 11569^2 + 98872^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9909514145 - 2⁴ = 9909514129 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9909514145.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18696932 + ... + 18697461.

It is an arithmetic number, because the mean of its divisors is an integer number (1514472957).

Almost surely, 2^9909514145 is an apocalyptic number.

It is an amenable number.

9909514145 is a deficient number, since it is larger than the sum of its proper divisors (2206269511).

9909514145 is a wasteful number, since it uses less digits than its factorization.

9909514145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37394451.

The product of its (nonzero) digits is 291600, while the sum is 47.

The square root of 9909514145 is about 99546.5426069635. The cubic root of 9909514145 is about 2147.9167955806.

The spelling of 9909514145 in words is "nine billion, nine hundred nine million, five hundred fourteen thousand, one hundred forty-five".