38115457 has 2 divisors, whose sum is σ = 38115458. Its totient is φ = 38115456.

The previous prime is 38115443. The next prime is 38115529. The reversal of 38115457 is 75451183.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37015056 + 1100401 = 6084^2 + 1049^2 .

It is a cyclic number.

It is not a de Polignac number, because 38115457 - 2¹¹ = 38113409 is a prime.

It is not a weakly prime, because it can be changed into another prime (38115437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19057728 + 19057729.

It is an arithmetic number, because the mean of its divisors is an integer number (19057729).

Almost surely, 2^38115457 is an apocalyptic number.

It is an amenable number.

38115457 is a deficient number, since it is larger than the sum of its proper divisors (1).

38115457 is an equidigital number, since it uses as much as digits as its factorization.

38115457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16800, while the sum is 34.

The square root of 38115457 is about 6173.7716996987. The cubic root of 38115457 is about 336.5376907958.

The spelling of 38115457 in words is "thirty-eight million, one hundred fifteen thousand, four hundred fifty-seven".