40385151 has 6 divisors (see below), whose sum is σ = 58334120. Its totient is φ = 26923428.

The previous prime is 40385143. The next prime is 40385159. The reversal of 40385151 is 15158304.

It is an interprime number because it is at equal distance from previous prime (40385143) and next prime (40385159).

It is not a de Polignac number, because 40385151 - 2³ = 40385143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40385159) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2243611 + ... + 2243628.

Almost surely, 2^40385151 is an apocalyptic number.

40385151 is a deficient number, since it is larger than the sum of its proper divisors (17948969).

40385151 is a wasteful number, since it uses less digits than its factorization.

40385151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4487245 (or 4487242 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 40385151 is about 6354.9312348758. The cubic root of 40385151 is about 343.0893499147.

The spelling of 40385151 in words is "forty million, three hundred eighty-five thousand, one hundred fifty-one".