40153387 has 2 divisors, whose sum is σ = 40153388. Its totient is φ = 40153386.

The previous prime is 40153367. The next prime is 40153427. The reversal of 40153387 is 78335104.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40153387 - 2¹¹ = 40151339 is a prime.

It is a super-2 number, since 2×40153387² = 3224588975143538, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40153367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20076693 + 20076694.

It is an arithmetic number, because the mean of its divisors is an integer number (20076694).

Almost surely, 2^40153387 is an apocalyptic number.

40153387 is a deficient number, since it is larger than the sum of its proper divisors (1).

40153387 is an equidigital number, since it uses as much as digits as its factorization.

40153387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 40153387 is about 6336.6700245476. The cubic root of 40153387 is about 342.4317785516.

The spelling of 40153387 in words is "forty million, one hundred fifty-three thousand, three hundred eighty-seven".