134020145 has 12 divisors (see below), whose sum is σ = 187081524. Its totient is φ = 91899360.

The previous prime is 134020123. The next prime is 134020151. The reversal of 134020145 is 541020431.

It can be written as a sum of positive squares in 2 ways, for example, as 102738496 + 31281649 = 10136^2 + 5593^2 .

It is not a de Polignac number, because 134020145 - 2¹⁴ = 134003761 is a prime.

It is a super-2 number, since 2×134020145² = 35922798531642050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 273266 + ... + 273755.

It is an arithmetic number, because the mean of its divisors is an integer number (15590127).

Almost surely, 2^134020145 is an apocalyptic number.

It is an amenable number.

134020145 is a deficient number, since it is larger than the sum of its proper divisors (53061379).

134020145 is an equidigital number, since it uses as much as digits as its factorization.

134020145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547040 (or 547033 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 134020145 is about 11576.7070015614. The cubic root of 134020145 is about 511.7486368384.

Adding to 134020145 its reverse (541020431), we get a palindrome (675040576).

The spelling of 134020145 in words is "one hundred thirty-four million, twenty thousand, one hundred forty-five".