134421545 has 12 divisors (see below), whose sum is σ = 168627396. Its totient is φ = 102859680.

The previous prime is 134421541. The next prime is 134421557. The reversal of 134421545 is 545124431.

It can be written as a sum of positive squares in 2 ways, for example, as 100560784 + 33860761 = 10028^2 + 5819^2 .

It is not a de Polignac number, because 134421545 - 2² = 134421541 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134421541) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22766 + ... + 28055.

It is an arithmetic number, because the mean of its divisors is an integer number (14052283).

Almost surely, 2^134421545 is an apocalyptic number.

It is an amenable number.

134421545 is a deficient number, since it is larger than the sum of its proper divisors (34205851).

134421545 is an equidigital number, since it uses as much as digits as its factorization.

134421545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50872 (or 50849 counting only the distinct ones).

The product of its digits is 9600, while the sum is 29.

The square root of 134421545 is about 11594.0305761198. The cubic root of 134421545 is about 512.2590356418.

Adding to 134421545 its reverse (545124431), we get a palindrome (679545976).

The spelling of 134421545 in words is "one hundred thirty-four million, four hundred twenty-one thousand, five hundred forty-five".