3958272145 has 4 divisors (see below), whose sum is σ = 4749926580. Its totient is φ = 3166617712.

The previous prime is 3958272137. The next prime is 3958272151. The reversal of 3958272145 is 5412728593.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1396292689 + 2561979456 = 37367^2 + 50616^2 .

It is a cyclic number.

It is not a de Polignac number, because 3958272145 - 2³ = 3958272137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3958272095 and 3958272104.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 395827210 + ... + 395827219.

It is an arithmetic number, because the mean of its divisors is an integer number (1187481645).

Almost surely, 2^3958272145 is an apocalyptic number.

It is an amenable number.

3958272145 is a deficient number, since it is larger than the sum of its proper divisors (791654435).

3958272145 is an equidigital number, since it uses as much as digits as its factorization.

3958272145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 791654434.

The product of its digits is 604800, while the sum is 46.

The square root of 3958272145 is about 62914.8006831461. The cubic root of 3958272145 is about 1581.8618420586.

The spelling of 3958272145 in words is "three billion, nine hundred fifty-eight million, two hundred seventy-two thousand, one hundred forty-five".