201513513401 has 8 divisors (see below), whose sum is σ = 209008935624. Its totient is φ = 194125939200.

The previous prime is 201513513379. The next prime is 201513513437. The reversal of 201513513401 is 104315315102.

It can be written as a sum of positive squares in 4 ways, for example, as 181540757776 + 19972755625 = 426076^2 + 141325^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 201513513401 - 2¹⁸ = 201513251257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201513513101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26958200 + ... + 26965673.

It is an arithmetic number, because the mean of its divisors is an integer number (26126116953).

Almost surely, 2^201513513401 is an apocalyptic number.

It is an amenable number.

201513513401 is a deficient number, since it is larger than the sum of its proper divisors (7495422223).

201513513401 is a wasteful number, since it uses less digits than its factorization.

201513513401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53924011.

The product of its (nonzero) digits is 1800, while the sum is 26.

Adding to 201513513401 its reverse (104315315102), we get a palindrome (305828828503).

The spelling of 201513513401 in words is "two hundred one billion, five hundred thirteen million, five hundred thirteen thousand, four hundred one".