38651101 has 2 divisors, whose sum is σ = 38651102. Its totient is φ = 38651100.

The previous prime is 38651087. The next prime is 38651117. The reversal of 38651101 is 10115683.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21436900 + 17214201 = 4630^2 + 4149^2 .

It is a cyclic number.

It is not a de Polignac number, because 38651101 - 2⁷ = 38650973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38651131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19325550 + 19325551.

It is an arithmetic number, because the mean of its divisors is an integer number (19325551).

Almost surely, 2^38651101 is an apocalyptic number.

It is an amenable number.

38651101 is a deficient number, since it is larger than the sum of its proper divisors (1).

38651101 is an equidigital number, since it uses as much as digits as its factorization.

38651101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 38651101 is about 6217.0009650956. Note that the first 3 decimals coincide. The cubic root of 38651101 is about 338.1068398172.

Adding to 38651101 its reverse (10115683), we get a palindrome (48766784).

The spelling of 38651101 in words is "thirty-eight million, six hundred fifty-one thousand, one hundred one".