135722161001 has 4 divisors (see below), whose sum is σ = 155111041152. Its totient is φ = 116333280852.

The previous prime is 135722160979. The next prime is 135722161007. The reversal of 135722161001 is 100161227531.

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, and also an emirpimes, since its reverse is a distinct semiprime: 100161227531 = 3347 ⋅29925673.

It is a cyclic number.

It is not a de Polignac number, because 135722161001 - 2³⁰ = 134648419177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135722161007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9694440065 + ... + 9694440078.

It is an arithmetic number, because the mean of its divisors is an integer number (38777760288).

Almost surely, 2^135722161001 is an apocalyptic number.

It is an amenable number.

135722161001 is a deficient number, since it is larger than the sum of its proper divisors (19388880151).

135722161001 is an equidigital number, since it uses as much as digits as its factorization.

135722161001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19388880150.

The product of its (nonzero) digits is 2520, while the sum is 29.

Adding to 135722161001 its reverse (100161227531), we get a palindrome (235883388532).

The spelling of 135722161001 in words is "one hundred thirty-five billion, seven hundred twenty-two million, one hundred sixty-one thousand, one".