134392973 has 32 divisors (see below), whose sum is σ = 170190720. Its totient is φ = 104232960.

The previous prime is 134392969. The next prime is 134392981. The reversal of 134392973 is 379293431.

It is not a de Polignac number, because 134392973 - 2² = 134392969 is a prime.

It is a super-2 number, since 2×134392973² = 36122942383557458, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 134392973.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134392903) 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, 142961 + ... + 143897.

It is an arithmetic number, because the mean of its divisors is an integer number (5318460).

Almost surely, 2^134392973 is an apocalyptic number.

134392973 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

134392973 is a deficient number, since it is larger than the sum of its proper divisors (35797747).

134392973 is a wasteful number, since it uses less digits than its factorization.

134392973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1037.

The product of its digits is 122472, while the sum is 41.

The square root of 134392973 is about 11592.7983248222. The cubic root of 134392973 is about 512.2227386273. Note that the first 3 decimals are identical.

The spelling of 134392973 in words is "one hundred thirty-four million, three hundred ninety-two thousand, nine hundred seventy-three".