15213001601 has 4 divisors (see below), whose sum is σ = 17386287552. Its totient is φ = 13039715652.

The previous prime is 15213001577. The next prime is 15213001613. The reversal of 15213001601 is 10610031251.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 15213001601 - 2¹⁰ = 15213000577 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (15213001631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1086642965 + ... + 1086642978.

It is an arithmetic number, because the mean of its divisors is an integer number (4346571888).

Almost surely, 2^15213001601 is an apocalyptic number.

It is an amenable number.

15213001601 is a deficient number, since it is larger than the sum of its proper divisors (2173285951).

15213001601 is an equidigital number, since it uses as much as digits as its factorization.

15213001601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2173285950.

The product of its (nonzero) digits is 180, while the sum is 20.

Adding to 15213001601 its reverse (10610031251), we get a palindrome (25823032852).

The spelling of 15213001601 in words is "fifteen billion, two hundred thirteen million, one thousand, six hundred one".