2138525473157 has 8 divisors (see below), whose sum is σ = 2196342046200. Its totient is φ = 2080709878464.

The previous prime is 2138525473087. The next prime is 2138525473169. The reversal of 2138525473157 is 7513745258312.

It can be written as a sum of positive squares in 4 ways, for example, as 1667690714881 + 470834758276 = 1291391^2 + 686174^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2138525473157 - 2¹⁰ = 2138525472133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2138525473099 and 2138525473108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2138525473057) 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, 7243019 + ... + 7532487.

It is an arithmetic number, because the mean of its divisors is an integer number (274542755775).

Almost surely, 2^{2138525473157} is an apocalyptic number.

It is an amenable number.

2138525473157 is a deficient number, since it is larger than the sum of its proper divisors (57816573043).

2138525473157 is a wasteful number, since it uses less digits than its factorization.

2138525473157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489175.

The product of its digits is 7056000, while the sum is 53.

The spelling of 2138525473157 in words is "two trillion, one hundred thirty-eight billion, five hundred twenty-five million, four hundred seventy-three thousand, one hundred fifty-seven".