124491533 has 4 divisors (see below), whose sum is σ = 124517820. Its totient is φ = 124465248.

The previous prime is 124491529. The next prime is 124491559. The reversal of 124491533 is 335194421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 335194421 = 83 ⋅4038487.

It can be written as a sum of positive squares in 2 ways, for example, as 31214569 + 93276964 = 5587^2 + 9658^2 .

It is a cyclic number.

It is not a de Polignac number, because 124491533 - 2² = 124491529 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 124491533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124491503) 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, 3848 + ... + 16241.

It is an arithmetic number, because the mean of its divisors is an integer number (31129455).

Almost surely, 2^124491533 is an apocalyptic number.

It is an amenable number.

124491533 is a deficient number, since it is larger than the sum of its proper divisors (26287).

124491533 is an equidigital number, since it uses as much as digits as its factorization.

124491533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26286.

The product of its digits is 12960, while the sum is 32.

The square root of 124491533 is about 11157.5773804173. The cubic root of 124491533 is about 499.3211226683.

The spelling of 124491533 in words is "one hundred twenty-four million, four hundred ninety-one thousand, five hundred thirty-three".