134138460 has 24 divisors (see below), whose sum is σ = 375587856. Its totient is φ = 35770240.

The previous prime is 134138443. The next prime is 134138471. The reversal of 134138460 is 64831431.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1117761 + ... + 1117880.

It is an arithmetic number, because the mean of its divisors is an integer number (15649494).

Almost surely, 2^134138460 is an apocalyptic number.

134138460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

134138460 is an abundant number, since it is smaller than the sum of its proper divisors (241449396).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

134138460 is a wasteful number, since it uses less digits than its factorization.

134138460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2235653 (or 2235651 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 134138460 is about 11581.8159197943. The cubic root of 134138460 is about 511.8991856764.

Adding to 134138460 its reverse (64831431), we get a palindrome (198969891).

The spelling of 134138460 in words is "one hundred thirty-four million, one hundred thirty-eight thousand, four hundred sixty".