148181831 has 24 divisors (see below), whose sum is σ = 177813600. Its totient is φ = 123432960.

The previous prime is 148181821. The next prime is 148181837. The reversal of 148181831 is 138181841.

It is not a de Polignac number, because 148181831 - 2¹⁴ = 148165447 is a prime.

It is a super-2 number, since 2×148181831² = 43915710077025122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 148181791 and 148181800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148181837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 576455 + ... + 576711.

It is an arithmetic number, because the mean of its divisors is an integer number (7408900).

Almost surely, 2^148181831 is an apocalyptic number.

148181831 is a deficient number, since it is larger than the sum of its proper divisors (29631769).

148181831 is an frugal number, since it uses more digits than its factorization.

148181831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360 (or 305 counting only the distinct ones).

The product of its digits is 6144, while the sum is 35.

The square root of 148181831 is about 12172.9959746974. The cubic root of 148181831 is about 529.1737820965.

The spelling of 148181831 in words is "one hundred forty-eight million, one hundred eighty-one thousand, eight hundred thirty-one".