13135157554 has 4 divisors (see below), whose sum is σ = 19702736334. Its totient is φ = 6567578776.

The previous prime is 13135157537. The next prime is 13135157557. The reversal of 13135157554 is 45575153131.

13135157554 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45575153131 = 23 ⋅1981528397.

It can be written as a sum of positive squares in only one way, i.e., 13132014025 + 3143529 = 114595^2 + 1773^2 .

It is not an unprimeable number, because it can be changed into a prime (13135157557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3283789387 + ... + 3283789390.

Almost surely, 2^13135157554 is an apocalyptic number.

13135157554 is a deficient number, since it is larger than the sum of its proper divisors (6567578780).

13135157554 is an equidigital number, since it uses as much as digits as its factorization.

13135157554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6567578779.

The product of its digits is 157500, while the sum is 40.

The spelling of 13135157554 in words is "thirteen billion, one hundred thirty-five million, one hundred fifty-seven thousand, five hundred fifty-four".