134263921 has 8 divisors (see below), whose sum is σ = 147839904. Its totient is φ = 120916320.

The previous prime is 134263891. The next prime is 134263933. The reversal of 134263921 is 129362431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 134263921 - 2⁷ = 134263793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134263951) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55860 + ... + 58213.

It is an arithmetic number, because the mean of its divisors is an integer number (18479988).

Almost surely, 2^134263921 is an apocalyptic number.

134263921 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

134263921 is a deficient number, since it is larger than the sum of its proper divisors (13575983).

134263921 is a wasteful number, since it uses less digits than its factorization.

134263921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114191.

The product of its digits is 7776, while the sum is 31.

The square root of 134263921 is about 11587.2309461752. The cubic root of 134263921 is about 512.0587306998.

The spelling of 134263921 in words is "one hundred thirty-four million, two hundred sixty-three thousand, nine hundred twenty-one".