148638263157 has 6 divisors (see below), whose sum is σ = 214699713462. Its totient is φ = 99092175432.

The previous prime is 148638263149. The next prime is 148638263167. The reversal of 148638263157 is 751362836841.

148638263157 is a `hidden beast` number, since 1 + 486 + 3 + 8 + 2 + 6 + 3 + 157 = 666.

It can be written as a sum of positive squares in only one way, i.e., 119435212836 + 29203050321 = 345594^2 + 170889^2 .

It is not a de Polignac number, because 148638263157 - 2³ = 148638263149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148638263107) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8257681278 + ... + 8257681295.

It is an arithmetic number, because the mean of its divisors is an integer number (35783285577).

Almost surely, 2^148638263157 is an apocalyptic number.

It is an amenable number.

148638263157 is a deficient number, since it is larger than the sum of its proper divisors (66061450305).

148638263157 is a wasteful number, since it uses less digits than its factorization.

148638263157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16515362579 (or 16515362576 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 54.

The spelling of 148638263157 in words is "one hundred forty-eight billion, six hundred thirty-eight million, two hundred sixty-three thousand, one hundred fifty-seven".