15381101 has 2 divisors, whose sum is σ = 15381102. Its totient is φ = 15381100.

The previous prime is 15381061. The next prime is 15381137. The reversal of 15381101 is 10118351.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15132100 + 249001 = 3890^2 + 499^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15381101 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15387101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7690550 + 7690551.

It is an arithmetic number, because the mean of its divisors is an integer number (7690551).

Almost surely, 2^15381101 is an apocalyptic number.

It is an amenable number.

15381101 is a deficient number, since it is larger than the sum of its proper divisors (1).

15381101 is an equidigital number, since it uses as much as digits as its factorization.

15381101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120, while the sum is 20.

The square root of 15381101 is about 3921.8746792829. The cubic root of 15381101 is about 248.6923777542.

Adding to 15381101 its reverse (10118351), we get a palindrome (25499452).

The spelling of 15381101 in words is "fifteen million, three hundred eighty-one thousand, one hundred one".