15135120001 has 2 divisors, whose sum is σ = 15135120002. Its totient is φ = 15135120000.

The previous prime is 15135119999. The next prime is 15135120017. The reversal of 15135120001 is 10002153151.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12516239376 + 2618880625 = 111876^2 + 51175^2 .

It is a cyclic number.

It is not a de Polignac number, because 15135120001 - 2¹ = 15135119999 is a prime.

Together with 15135119999, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (15135120401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7567560000 + 7567560001.

It is an arithmetic number, because the mean of its divisors is an integer number (7567560001).

Almost surely, 2^15135120001 is an apocalyptic number.

It is an amenable number.

15135120001 is a deficient number, since it is larger than the sum of its proper divisors (1).

15135120001 is an equidigital number, since it uses as much as digits as its factorization.

15135120001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 150, while the sum is 19.

Adding to 15135120001 its reverse (10002153151), we get a palindrome (25137273152).

The spelling of 15135120001 in words is "fifteen billion, one hundred thirty-five million, one hundred twenty thousand, one".