43145257090 has 16 divisors (see below), whose sum is σ = 83635421688. Its totient is φ = 15930556416.

The previous prime is 43145257069. The next prime is 43145257091. The reversal of 43145257090 is 9075254134.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 36835973329 + 6309283761 = 191927^2 + 79431^2 .

It is not an unprimeable number, because it can be changed into a prime (43145257091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165943167 + ... + 165943426.

Almost surely, 2^43145257090 is an apocalyptic number.

43145257090 is a deficient number, since it is larger than the sum of its proper divisors (40490164598).

43145257090 is a wasteful number, since it uses less digits than its factorization.

43145257090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331886613.

The product of its (nonzero) digits is 151200, while the sum is 40.

The spelling of 43145257090 in words is "forty-three billion, one hundred forty-five million, two hundred fifty-seven thousand, ninety".