38997151 has 4 divisors (see below), whose sum is σ = 39015000. Its totient is φ = 38979304.

The previous prime is 38997131. The next prime is 38997157. The reversal of 38997151 is 15179983.

38997151 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 38997151 - 2¹³ = 38988959 is a prime.

It is a super-2 number, since 2×38997151² = 3041555572233602, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38997098 and 38997107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38997157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5101 + ... + 10198.

It is an arithmetic number, because the mean of its divisors is an integer number (9753750).

Almost surely, 2^38997151 is an apocalyptic number.

38997151 is a deficient number, since it is larger than the sum of its proper divisors (17849).

38997151 is a wasteful number, since it uses less digits than its factorization.

38997151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17848.

The product of its digits is 68040, while the sum is 43.

The square root of 38997151 is about 6244.7698916774. The cubic root of 38997151 is about 339.1128863555.

The spelling of 38997151 in words is "thirty-eight million, nine hundred ninety-seven thousand, one hundred fifty-one".