134861430 has 128 divisors (see below), whose sum is σ = 376773120. Its totient is φ = 30551040.

The previous prime is 134861413. The next prime is 134861437. The reversal of 134861430 is 34168431.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134861437) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 858912 + ... + 859068.

It is an arithmetic number, because the mean of its divisors is an integer number (2943540).

Almost surely, 2^134861430 is an apocalyptic number.

134861430 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 134861430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188386560).

134861430 is an abundant number, since it is smaller than the sum of its proper divisors (241911690).

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

134861430 is a wasteful number, since it uses less digits than its factorization.

134861430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334.

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

The square root of 134861430 is about 11612.9854042791. The cubic root of 134861430 is about 512.8172043840.

The spelling of 134861430 in words is "one hundred thirty-four million, eight hundred sixty-one thousand, four hundred thirty".