148536993 has 16 divisors (see below), whose sum is σ = 216395712. Its totient is φ = 89880000.

The previous prime is 148536991. The next prime is 148537001. The reversal of 148536993 is 399635841.

It is not a de Polignac number, because 148536993 - 2¹ = 148536991 is a prime.

It is not an unprimeable number, because it can be changed into a prime (148536991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19923 + ... + 26343.

It is an arithmetic number, because the mean of its divisors is an integer number (13524732).

Almost surely, 2^148536993 is an apocalyptic number.

It is an amenable number.

148536993 is a deficient number, since it is larger than the sum of its proper divisors (67858719).

148536993 is a wasteful number, since it uses less digits than its factorization.

148536993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7136.

The product of its digits is 699840, while the sum is 48.

The square root of 148536993 is about 12187.5753536132. The cubic root of 148536993 is about 529.5962190979.

The spelling of 148536993 in words is "one hundred forty-eight million, five hundred thirty-six thousand, nine hundred ninety-three".