43151387 has 2 divisors, whose sum is σ = 43151388. Its totient is φ = 43151386.

The previous prime is 43151371. The next prime is 43151401. The reversal of 43151387 is 78315134.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43151387 - 2⁴ = 43151371 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (43151587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21575693 + 21575694.

It is an arithmetic number, because the mean of its divisors is an integer number (21575694).

Almost surely, 2^43151387 is an apocalyptic number.

43151387 is a deficient number, since it is larger than the sum of its proper divisors (1).

43151387 is an equidigital number, since it uses as much as digits as its factorization.

43151387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 32.

The square root of 43151387 is about 6568.9715328962. The cubic root of 43151387 is about 350.7504631907.

The spelling of 43151387 in words is "forty-three million, one hundred fifty-one thousand, three hundred eighty-seven".