137723403 has 4 divisors (see below), whose sum is σ = 183631208. Its totient is φ = 91815600.

The previous prime is 137723401. The next prime is 137723431. The reversal of 137723403 is 304327731.

137723403 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 137723403 - 2¹ = 137723401 is a prime.

It is a super-3 number, since 3×137723403³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137723401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22953898 + ... + 22953903.

It is an arithmetic number, because the mean of its divisors is an integer number (45907802).

Almost surely, 2^137723403 is an apocalyptic number.

137723403 is a deficient number, since it is larger than the sum of its proper divisors (45907805).

137723403 is an equidigital number, since it uses as much as digits as its factorization.

137723403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45907804.

The product of its (nonzero) digits is 10584, while the sum is 30.

The square root of 137723403 is about 11735.5614693120. The cubic root of 137723403 is about 516.4194391710.

The spelling of 137723403 in words is "one hundred thirty-seven million, seven hundred twenty-three thousand, four hundred three".