9145396957 has 4 divisors (see below), whose sum is σ = 9145590940. Its totient is φ = 9145202976.

The previous prime is 9145396951. The next prime is 9145396961. The reversal of 9145396957 is 7596935419.

It is a happy number.

9145396957 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7596935419 = 2459 ⋅3089441.

It can be written as a sum of positive squares in 2 ways, for example, as 4941949401 + 4203447556 = 70299^2 + 64834^2 .

It is a cyclic number.

It is not a de Polignac number, because 9145396957 - 2⁷ = 9145396829 is a prime.

It is a super-2 number, since 2×9145396957² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9145396951) 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, 24223 + ... + 137395.

It is an arithmetic number, because the mean of its divisors is an integer number (2286397735).

Almost surely, 2^9145396957 is an apocalyptic number.

It is an amenable number.

9145396957 is a deficient number, since it is larger than the sum of its proper divisors (193983).

9145396957 is a wasteful number, since it uses less digits than its factorization.

9145396957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193982.

The product of its digits is 9185400, while the sum is 58.

The square root of 9145396957 is about 95631.5688305907. The cubic root of 9145396957 is about 2091.2254404641.

The spelling of 9145396957 in words is "nine billion, one hundred forty-five million, three hundred ninety-six thousand, nine hundred fifty-seven".