43149069 has 24 divisors (see below), whose sum is σ = 63760320. Its totient is φ = 28112832.

The previous prime is 43149061. The next prime is 43149079. The reversal of 43149069 is 96094134.

It is not a de Polignac number, because 43149069 - 2³ = 43149061 is a prime.

It is a super-2 number, since 2×43149069² = 3723684311133522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43149061) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 82242 + ... + 82764.

It is an arithmetic number, because the mean of its divisors is an integer number (2656680).

Almost surely, 2^43149069 is an apocalyptic number.

It is an amenable number.

43149069 is a deficient number, since it is larger than the sum of its proper divisors (20611251).

43149069 is a wasteful number, since it uses less digits than its factorization.

43149069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721 (or 718 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 43149069 is about 6568.7950949927. The cubic root of 43149069 is about 350.7441825573.

The spelling of 43149069 in words is "forty-three million, one hundred forty-nine thousand, sixty-nine".