134655990 has 64 divisors (see below), whose sum is σ = 382095360. Its totient is φ = 29715840.

The previous prime is 134655967. The next prime is 134656003. The reversal of 134655990 is 99556431.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4966 + ... + 17145.

It is an arithmetic number, because the mean of its divisors is an integer number (5970240).

Almost surely, 2^134655990 is an apocalyptic number.

134655990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

134655990 is an abundant number, since it is smaller than the sum of its proper divisors (247439370).

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

134655990 is a wasteful number, since it uses less digits than its factorization.

134655990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22157.

The product of its (nonzero) digits is 145800, while the sum is 42.

The square root of 134655990 is about 11604.1367623792. The cubic root of 134655990 is about 512.5566734868.

The spelling of 134655990 in words is "one hundred thirty-four million, six hundred fifty-five thousand, nine hundred ninety".