123201525 has 24 divisors (see below), whose sum is σ = 204272640. Its totient is φ = 65520640.

The previous prime is 123201473. The next prime is 123201553. The reversal of 123201525 is 525102321.

It is not a de Polignac number, because 123201525 - 2⁶ = 123201461 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26581 + ... + 30869.

It is an arithmetic number, because the mean of its divisors is an integer number (8511360).

Almost surely, 2^123201525 is an apocalyptic number.

123201525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

123201525 is a deficient number, since it is larger than the sum of its proper divisors (81071115).

123201525 is a wasteful number, since it uses less digits than its factorization.

123201525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4685 (or 4680 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 123201525 is about 11099.6182366782. The cubic root of 123201525 is about 497.5904400280.

Adding to 123201525 its reverse (525102321), we get a palindrome (648303846).

The spelling of 123201525 in words is "one hundred twenty-three million, two hundred one thousand, five hundred twenty-five".