9145740258 has 18 divisors (see below), whose sum is σ = 19816649697. Its totient is φ = 3048444840.

The previous prime is 9145740251. The next prime is 9145740283. The reversal of 9145740258 is 8520475419.

It can be written as a sum of positive squares in 2 ways, for example, as 8268810489 + 876929769 = 90933^2 + 29613^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=67623.

It is not an unprimeable number, because it can be changed into a prime (9145740251) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 394468 + ... + 417008.

Almost surely, 2^9145740258 is an apocalyptic number.

9145740258 is an abundant number, since it is smaller than the sum of its proper divisors (10670909439).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9145740258 is an frugal number, since it uses more digits than its factorization.

9145740258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45090 (or 22546 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 45.

The square root of 9145740258 is about 95633.3637283558. The cubic root of 9145740258 is about 2091.2516070265.

The spelling of 9145740258 in words is "nine billion, one hundred forty-five million, seven hundred forty thousand, two hundred fifty-eight".