134143770 has 64 divisors (see below), whose sum is σ = 345098880. Its totient is φ = 33251328.

The previous prime is 134143741. The next prime is 134143777. The reversal of 134143770 is 77341431.

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

It is not an unprimeable number, because it can be changed into a prime (134143777) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40746 + ... + 43914.

It is an arithmetic number, because the mean of its divisors is an integer number (5392170).

Almost surely, 2^134143770 is an apocalyptic number.

134143770 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 134143770, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172549440).

134143770 is an abundant number, since it is smaller than the sum of its proper divisors (210955110).

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

134143770 is a wasteful number, since it uses less digits than its factorization.

134143770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3279.

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 134143770 is about 11582.0451561890. The cubic root of 134143770 is about 511.9059402612.

The spelling of 134143770 in words is "one hundred thirty-four million, one hundred forty-three thousand, seven hundred seventy".