123473531 has 8 divisors (see below), whose sum is σ = 125178144. Its totient is φ = 121777920.

The previous prime is 123473521. The next prime is 123473549. The reversal of 123473531 is 135374321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123473531 is a prime.

It is a super-2 number, since 2×123473531² = 30491425715215922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123473494 and 123473503.

It is not an unprimeable number, because it can be changed into a prime (123473521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28121 + ... + 32213.

It is an arithmetic number, because the mean of its divisors is an integer number (15647268).

Almost surely, 2^123473531 is an apocalyptic number.

123473531 is a deficient number, since it is larger than the sum of its proper divisors (1704613).

123473531 is an equidigital number, since it uses as much as digits as its factorization.

123473531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4501.

The product of its digits is 7560, while the sum is 29.

The square root of 123473531 is about 11111.8644250189. The cubic root of 123473531 is about 497.9563665044.

The spelling of 123473531 in words is "one hundred twenty-three million, four hundred seventy-three thousand, five hundred thirty-one".