134820609 has 64 divisors (see below), whose sum is σ = 234854400. Its totient is φ = 68160960.

The previous prime is 134820601. The next prime is 134820613. The reversal of 134820609 is 906028431.

It is not a de Polignac number, because 134820609 - 2³ = 134820601 is a prime.

It is a super-2 number, since 2×134820609² = 36353193222261762, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a self number, because there is not a number n which added to its sum of digits gives 134820609.

It is not an unprimeable number, because it can be changed into a prime (134820601) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 486579 + ... + 486855.

It is an arithmetic number, because the mean of its divisors is an integer number (3669600).

Almost surely, 2^134820609 is an apocalyptic number.

It is an amenable number.

134820609 is a deficient number, since it is larger than the sum of its proper divisors (100033791).

134820609 is a wasteful number, since it uses less digits than its factorization.

134820609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355 (or 341 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 134820609 is about 11611.2277128648. The cubic root of 134820609 is about 512.7654578775.

The spelling of 134820609 in words is "one hundred thirty-four million, eight hundred twenty thousand, six hundred nine".