123523541 has 4 divisors (see below), whose sum is σ = 130024800. Its totient is φ = 117022284.

The previous prime is 123523537. The next prime is 123523559. The reversal of 123523541 is 145325321.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 123523541 - 2² = 123523537 is a prime.

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 123523541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123523511) 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, 3250601 + ... + 3250638.

It is an arithmetic number, because the mean of its divisors is an integer number (32506200).

Almost surely, 2^123523541 is an apocalyptic number.

It is an amenable number.

123523541 is a deficient number, since it is larger than the sum of its proper divisors (6501259).

123523541 is an equidigital number, since it uses as much as digits as its factorization.

123523541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6501258.

The product of its digits is 3600, while the sum is 26.

The square root of 123523541 is about 11114.1144946415. The cubic root of 123523541 is about 498.0235858681.

Adding to 123523541 its reverse (145325321), we get a palindrome (268848862).

The spelling of 123523541 in words is "one hundred twenty-three million, five hundred twenty-three thousand, five hundred forty-one".