1238485525 has 12 divisors (see below), whose sum is σ = 1536158500. Its totient is φ = 990506880.

The previous prime is 1238485487. The next prime is 1238485529. The reversal of 1238485525 is 5255848321.

It can be written as a sum of positive squares in 6 ways, for example, as 23126481 + 1215359044 = 4809^2 + 34862^2 .

It is not a de Polignac number, because 1238485525 - 2¹⁹ = 1237961237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1238485529) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 170161 + ... + 177289.

Almost surely, 2^1238485525 is an apocalyptic number.

It is an amenable number.

1238485525 is a deficient number, since it is larger than the sum of its proper divisors (297672975).

1238485525 is an equidigital number, since it uses as much as digits as its factorization.

1238485525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14088 (or 14083 counting only the distinct ones).

The product of its digits is 384000, while the sum is 43.

The square root of 1238485525 is about 35192.1230533198. The cubic root of 1238485525 is about 1073.8995119869.

The spelling of 1238485525 in words is "one billion, two hundred thirty-eight million, four hundred eighty-five thousand, five hundred twenty-five".