134149680 has 240 divisors, whose sum is σ = 527704320. Its totient is φ = 29901312.

The previous prime is 134149661. The next prime is 134149721. The reversal of 134149680 is 86941431.

It is a tau number, because it is divible by the number of its divisors (240).

It is a super-2 number, since 2×134149680² = 35992273288204800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 216411 + ... + 217029.

It is an arithmetic number, because the mean of its divisors is an integer number (2198768).

Almost surely, 2^134149680 is an apocalyptic number.

134149680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 134149680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (263852160).

134149680 is an abundant number, since it is smaller than the sum of its proper divisors (393554640).

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

134149680 is a wasteful number, since it uses less digits than its factorization.

134149680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688 (or 679 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 134149680 is about 11582.3002896661. The cubic root of 134149680 is about 511.9134578663.

The spelling of 134149680 in words is "one hundred thirty-four million, one hundred forty-nine thousand, six hundred eighty".