3817157145 has 8 divisors (see below), whose sum is σ = 6107451456. Its totient is φ = 2035817136.

The previous prime is 3817157129. The next prime is 3817157147. The reversal of 3817157145 is 5417517183.

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

It is not a de Polignac number, because 3817157145 - 2⁴ = 3817157129 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3817157097 and 3817157106.

It is not an unprimeable number, because it can be changed into a prime (3817157147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127238557 + ... + 127238586.

It is an arithmetic number, because the mean of its divisors is an integer number (763431432).

Almost surely, 2^3817157145 is an apocalyptic number.

It is an amenable number.

3817157145 is a deficient number, since it is larger than the sum of its proper divisors (2290294311).

3817157145 is a wasteful number, since it uses less digits than its factorization.

3817157145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254477151.

The product of its digits is 117600, while the sum is 42.

The square root of 3817157145 is about 61783.1461241656. The cubic root of 3817157145 is about 1562.8357833652.

The spelling of 3817157145 in words is "three billion, eight hundred seventeen million, one hundred fifty-seven thousand, one hundred forty-five".