43142066 has 36 divisors (see below), whose sum is σ = 74578686. Its totient is φ = 18701760.

The previous prime is 43142063. The next prime is 43142069. The reversal of 43142066 is 66024134.

It is an interprime number because it is at equal distance from previous prime (43142063) and next prime (43142069).

It can be written as a sum of positive squares in only one way, i.e., 40005625 + 3136441 = 6325^2 + 1771^2 .

It is a super-2 number, since 2×43142066² = 3722475717496712, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43142063) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 127850 + ... + 128186.

Almost surely, 2^43142066 is an apocalyptic number.

43142066 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

43142066 is a deficient number, since it is larger than the sum of its proper divisors (31436620).

43142066 is a wasteful number, since it uses less digits than its factorization.

43142066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407 (or 373 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 43142066 is about 6568.2620227881. The cubic root of 43142066 is about 350.7252065248.

The spelling of 43142066 in words is "forty-three million, one hundred forty-two thousand, sixty-six".