13151021146 has 8 divisors (see below), whose sum is σ = 19789556724. Its totient is φ = 6554502240.

The previous prime is 13151021137. The next prime is 13151021153. The reversal of 13151021146 is 64112015131.

It can be written as a sum of positive squares in 2 ways, for example, as 10033027225 + 3117993921 = 100165^2 + 55839^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 13151021146.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10503385 + ... + 10504636.

Almost surely, 2^13151021146 is an apocalyptic number.

13151021146 is a deficient number, since it is larger than the sum of its proper divisors (6638535578).

13151021146 is a wasteful number, since it uses less digits than its factorization.

13151021146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21008336.

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

Adding to 13151021146 its reverse (64112015131), we get a palindrome (77263036277).

The spelling of 13151021146 in words is "thirteen billion, one hundred fifty-one million, twenty-one thousand, one hundred forty-six".