148236538 has 8 divisors (see below), whose sum is σ = 222599520. Its totient is φ = 74036700.

The previous prime is 148236511. The next prime is 148236547. The reversal of 148236538 is 835632841.

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

It is a self number, because there is not a number n which added to its sum of digits gives 148236538.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38488 + ... + 42163.

It is an arithmetic number, because the mean of its divisors is an integer number (27824940).

Almost surely, 2^148236538 is an apocalyptic number.

148236538 is a deficient number, since it is larger than the sum of its proper divisors (74362982).

148236538 is an equidigital number, since it uses as much as digits as its factorization.

148236538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81572.

The product of its digits is 138240, while the sum is 40.

The square root of 148236538 is about 12175.2428312539. The cubic root of 148236538 is about 529.2388956758.

The spelling of 148236538 in words is "one hundred forty-eight million, two hundred thirty-six thousand, five hundred thirty-eight".