43401151 has 2 divisors, whose sum is σ = 43401152. Its totient is φ = 43401150.

The previous prime is 43401131. The next prime is 43401179. The reversal of 43401151 is 15110434.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43401151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43401101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21700575 + 21700576.

It is an arithmetic number, because the mean of its divisors is an integer number (21700576).

Almost surely, 2^43401151 is an apocalyptic number.

43401151 is a deficient number, since it is larger than the sum of its proper divisors (1).

43401151 is an equidigital number, since it uses as much as digits as its factorization.

43401151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 43401151 is about 6587.9549937746. The cubic root of 43401151 is about 351.4258865062.

Adding to 43401151 its reverse (15110434), we get a palindrome (58511585).

The spelling of 43401151 in words is "forty-three million, four hundred one thousand, one hundred fifty-one".