134731623 has 16 divisors (see below), whose sum is σ = 194019840. Its totient is φ = 82672224.

The previous prime is 134731621. The next prime is 134731643. The reversal of 134731623 is 326137431.

It is not a de Polignac number, because 134731623 - 2¹ = 134731621 is a prime.

It is a super-2 number, since 2×134731623² = 36305220472428258, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134731621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9190 + ... + 18812.

It is an arithmetic number, because the mean of its divisors is an integer number (12126240).

Almost surely, 2^134731623 is an apocalyptic number.

134731623 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

134731623 is a deficient number, since it is larger than the sum of its proper divisors (59288217).

134731623 is a wasteful number, since it uses less digits than its factorization.

134731623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9998.

The product of its digits is 9072, while the sum is 30.

The square root of 134731623 is about 11607.3951858287. The cubic root of 134731623 is about 512.6526190716.

The spelling of 134731623 in words is "one hundred thirty-four million, seven hundred thirty-one thousand, six hundred twenty-three".