148947517 has 12 divisors (see below), whose sum is σ = 164043360. Its totient is φ = 134965512.

The previous prime is 148947439. The next prime is 148947527. The reversal of 148947517 is 715749841.

It is a happy number.

It is not a de Polignac number, because 148947517 - 2⁷ = 148947389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148947527) 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, 667 + ... + 17272.

It is an arithmetic number, because the mean of its divisors is an integer number (13670280).

Almost surely, 2^148947517 is an apocalyptic number.

It is an amenable number.

148947517 is a deficient number, since it is larger than the sum of its proper divisors (15095843).

148947517 is a wasteful number, since it uses less digits than its factorization.

148947517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18000 (or 17981 counting only the distinct ones).

The product of its digits is 282240, while the sum is 46.

The square root of 148947517 is about 12204.4056389486. The cubic root of 148947517 is about 530.0836666302.

The spelling of 148947517 in words is "one hundred forty-eight million, nine hundred forty-seven thousand, five hundred seventeen".