43251142 has 16 divisors (see below), whose sum is σ = 71465472. Its totient is φ = 19467720.

The previous prime is 43251137. The next prime is 43251149. The reversal of 43251142 is 24115234.

It is a super-2 number, since 2×43251142² = 3741322568608328, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43251149) 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, 7278 + ... + 11809.

It is an arithmetic number, because the mean of its divisors is an integer number (4466592).

Almost surely, 2^43251142 is an apocalyptic number.

43251142 is a deficient number, since it is larger than the sum of its proper divisors (28214330).

43251142 is a wasteful number, since it uses less digits than its factorization.

43251142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19203.

The product of its digits is 960, while the sum is 22.

The square root of 43251142 is about 6576.5600430620. The cubic root of 43251142 is about 351.0205370516.

Adding to 43251142 its reverse (24115234), we get a palindrome (67366376).

The spelling of 43251142 in words is "forty-three million, two hundred fifty-one thousand, one hundred forty-two".