38133457 has 2 divisors, whose sum is σ = 38133458. Its totient is φ = 38133456.

The previous prime is 38133443. The next prime is 38133493. The reversal of 38133457 is 75433183.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27867841 + 10265616 = 5279^2 + 3204^2 .

It is a cyclic number.

It is not a de Polignac number, because 38133457 - 2¹¹ = 38131409 is a prime.

It is not a weakly prime, because it can be changed into another prime (38133427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19066728 + 19066729.

It is an arithmetic number, because the mean of its divisors is an integer number (19066729).

Almost surely, 2^38133457 is an apocalyptic number.

It is an amenable number.

38133457 is a deficient number, since it is larger than the sum of its proper divisors (1).

38133457 is an equidigital number, since it uses as much as digits as its factorization.

38133457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 34.

The square root of 38133457 is about 6175.2293074832. The cubic root of 38133457 is about 336.5906590278.

The spelling of 38133457 in words is "thirty-eight million, one hundred thirty-three thousand, four hundred fifty-seven".