134666550 has 120 divisors (see below), whose sum is σ = 383772312. Its totient is φ = 34992000.

The previous prime is 134666527. The next prime is 134666551. The reversal of 134666550 is 55666431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134666551) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 165645 + ... + 166455.

Almost surely, 2^134666550 is an apocalyptic number.

134666550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 134666550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191886156).

134666550 is an abundant number, since it is smaller than the sum of its proper divisors (249105762).

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

134666550 is a wasteful number, since it uses less digits than its factorization.

134666550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 876 (or 862 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 134666550 is about 11604.5917636081. The cubic root of 134666550 is about 512.5700717198.

It can be divided in two parts, 1346 and 66550, that added together give a triangular number (67896 = T₃₆₈).

The spelling of 134666550 in words is "one hundred thirty-four million, six hundred sixty-six thousand, five hundred fifty".