7145155426 has 4 divisors (see below), whose sum is σ = 10717733142. Its totient is φ = 3572577712.

The previous prime is 7145155421. The next prime is 7145155441. The reversal of 7145155426 is 6245515417.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6245515417 = 19891 ⋅313987.

It can be written as a sum of positive squares in only one way, i.e., 4542625201 + 2602530225 = 67399^2 + 51015^2 .

It is not an unprimeable number, because it can be changed into a prime (7145155421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1786288855 + ... + 1786288858.

Almost surely, 2^7145155426 is an apocalyptic number.

7145155426 is a deficient number, since it is larger than the sum of its proper divisors (3572577716).

7145155426 is a wasteful number, since it uses less digits than its factorization.

7145155426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3572577715.

The product of its digits is 168000, while the sum is 40.

The square root of 7145155426 is about 84529.0212057374. The cubic root of 7145155426 is about 1926.0633177332.

The spelling of 7145155426 in words is "seven billion, one hundred forty-five million, one hundred fifty-five thousand, four hundred twenty-six".