43148331 has 6 divisors (see below), whose sum is σ = 62325380. Its totient is φ = 28765548.

The previous prime is 43148323. The next prime is 43148341. The reversal of 43148331 is 13384134.

It is not a de Polignac number, because 43148331 - 2³ = 43148323 is a prime.

It is a super-2 number, since 2×43148331² = 3723556936171122, 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 = 43148295 and 43148304.

It is not an unprimeable number, because it can be changed into a prime (43148321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2397121 + ... + 2397138.

Almost surely, 2^43148331 is an apocalyptic number.

43148331 is a deficient number, since it is larger than the sum of its proper divisors (19177049).

43148331 is a wasteful number, since it uses less digits than its factorization.

43148331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4794265 (or 4794262 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 43148331 is about 6568.7389200668. The cubic root of 43148331 is about 350.7421828951.

The spelling of 43148331 in words is "forty-three million, one hundred forty-eight thousand, three hundred thirty-one".