134967990 has 64 divisors (see below), whose sum is σ = 332335872. Its totient is φ = 35068800.

The previous prime is 134967983. The next prime is 134967997. The reversal of 134967990 is 99769431.

It is an interprime number because it is at equal distance from previous prime (134967983) and next prime (134967997).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134967997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 239449 + ... + 240011.

It is an arithmetic number, because the mean of its divisors is an integer number (5192748).

Almost surely, 2^134967990 is an apocalyptic number.

134967990 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 134967990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166167936).

134967990 is an abundant number, since it is smaller than the sum of its proper divisors (197367882).

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

134967990 is a wasteful number, since it uses less digits than its factorization.

134967990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765.

The product of its (nonzero) digits is 367416, while the sum is 48.

The square root of 134967990 is about 11617.5724658812. The cubic root of 134967990 is about 512.9522353683.

The spelling of 134967990 in words is "one hundred thirty-four million, nine hundred sixty-seven thousand, nine hundred ninety".