43138156 has 12 divisors (see below), whose sum is σ = 78774192. Its totient is φ = 20631248.

The previous prime is 43138153. The next prime is 43138181. The reversal of 43138156 is 65183134.

It is not an unprimeable number, because it can be changed into a prime (43138153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 234355 + ... + 234538.

It is an arithmetic number, because the mean of its divisors is an integer number (6564516).

Almost surely, 2^43138156 is an apocalyptic number.

43138156 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

43138156 is a deficient number, since it is larger than the sum of its proper divisors (35636036).

43138156 is a wasteful number, since it uses less digits than its factorization.

43138156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468920 (or 468918 counting only the distinct ones).

The product of its digits is 8640, while the sum is 31.

The square root of 43138156 is about 6567.9643726196. The cubic root of 43138156 is about 350.7146107026.

The spelling of 43138156 in words is "forty-three million, one hundred thirty-eight thousand, one hundred fifty-six".