46640123 has 4 divisors (see below), whose sum is σ = 47076120. Its totient is φ = 46204128.

The previous prime is 46640093. The next prime is 46640131. The reversal of 46640123 is 32104664.

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

It is a cyclic number.

It is not a de Polignac number, because 46640123 - 2⁸ = 46639867 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 46640092 and 46640101.

It is not an unprimeable number, because it can be changed into a prime (46640023) 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, 217838 + ... + 218051.

It is an arithmetic number, because the mean of its divisors is an integer number (11769030).

Almost surely, 2^46640123 is an apocalyptic number.

46640123 is a deficient number, since it is larger than the sum of its proper divisors (435997).

46640123 is a wasteful number, since it uses less digits than its factorization.

46640123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435996.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 46640123 is about 6829.3574368311. The cubic root of 46640123 is about 359.9591594616.

Adding to 46640123 its reverse (32104664), we get a palindrome (78744787).

The spelling of 46640123 in words is "forty-six million, six hundred forty thousand, one hundred twenty-three".