43145007 has 4 divisors (see below), whose sum is σ = 57526680. Its totient is φ = 28763336.

The previous prime is 43144973. The next prime is 43145009. The reversal of 43145007 is 70054134.

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

It is a cyclic number.

It is not a de Polignac number, because 43145007 - 2⁷ = 43144879 is a prime.

It is a super-2 number, since 2×43145007² = 3722983258060098, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43145009) 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, 7190832 + ... + 7190837.

It is an arithmetic number, because the mean of its divisors is an integer number (14381670).

Almost surely, 2^43145007 is an apocalyptic number.

43145007 is a deficient number, since it is larger than the sum of its proper divisors (14381673).

43145007 is a wasteful number, since it uses less digits than its factorization.

43145007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14381672.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 43145007 is about 6568.4858985919. The cubic root of 43145007 is about 350.7331760040.

The spelling of 43145007 in words is "forty-three million, one hundred forty-five thousand, seven".