123525013 has 4 divisors (see below), whose sum is σ = 124658380. Its totient is φ = 122391648.

The previous prime is 123524993. The next prime is 123525029. The reversal of 123525013 is 310525321.

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

It can be written as a sum of positive squares in 2 ways, for example, as 87740689 + 35784324 = 9367^2 + 5982^2 .

It is a cyclic number.

It is not a de Polignac number, because 123525013 - 2¹³ = 123516821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123525053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 566520 + ... + 566737.

It is an arithmetic number, because the mean of its divisors is an integer number (31164595).

Almost surely, 2^123525013 is an apocalyptic number.

It is an amenable number.

123525013 is a deficient number, since it is larger than the sum of its proper divisors (1133367).

123525013 is a wasteful number, since it uses less digits than its factorization.

123525013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1133366.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 123525013 is about 11114.1807165441. The cubic root of 123525013 is about 498.0255641355.

The spelling of 123525013 in words is "one hundred twenty-three million, five hundred twenty-five thousand, thirteen".