38154481 has 2 divisors, whose sum is σ = 38154482. Its totient is φ = 38154480.

The previous prime is 38154439. The next prime is 38154509. The reversal of 38154481 is 18445183.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33744481 + 4410000 = 5809^2 + 2100^2 .

It is an emirp because it is prime and its reverse (18445183) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38154481 - 2¹⁷ = 38023409 is a prime.

It is a super-2 number, since 2×38154481² = 2911528840758722, which contains 22 as substring.

It is a pancake number, because a pancake can be divided into 38154481 parts by 8735 straight cuts.

It is equal to p_2327866 and since 38154481 and 2327866 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (38154581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19077240 + 19077241.

It is an arithmetic number, because the mean of its divisors is an integer number (19077241).

Almost surely, 2^38154481 is an apocalyptic number.

It is an amenable number.

38154481 is a deficient number, since it is larger than the sum of its proper divisors (1).

38154481 is an equidigital number, since it uses as much as digits as its factorization.

38154481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15360, while the sum is 34.

The square root of 38154481 is about 6176.9313578831. The cubic root of 38154481 is about 336.6525048232.

The spelling of 38154481 in words is "thirty-eight million, one hundred fifty-four thousand, four hundred eighty-one".