148662238 has 4 divisors (see below), whose sum is σ = 222993360. Its totient is φ = 74331118.

The previous prime is 148662221. The next prime is 148662277. The reversal of 148662238 is 832266841.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×148662238² = 44200922014337288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 148662238.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37165558 + ... + 37165561.

It is an arithmetic number, because the mean of its divisors is an integer number (55748340).

Almost surely, 2^148662238 is an apocalyptic number.

148662238 is a deficient number, since it is larger than the sum of its proper divisors (74331122).

148662238 is an equidigital number, since it uses as much as digits as its factorization.

148662238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74331121.

The product of its digits is 110592, while the sum is 40.

The square root of 148662238 is about 12192.7124955852. The cubic root of 148662238 is about 529.7450274702.

The spelling of 148662238 in words is "one hundred forty-eight million, six hundred sixty-two thousand, two hundred thirty-eight".