135101154521 has 2 divisors, whose sum is σ = 135101154522. Its totient is φ = 135101154520.

The previous prime is 135101154509. The next prime is 135101154547. The reversal of 135101154521 is 125451101531.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75399118921 + 59702035600 = 274589^2 + 244340^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135101154521 is a prime.

It is not a weakly prime, because it can be changed into another prime (135101154821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67550577260 + 67550577261.

It is an arithmetic number, because the mean of its divisors is an integer number (67550577261).

Almost surely, 2^135101154521 is an apocalyptic number.

It is an amenable number.

135101154521 is a deficient number, since it is larger than the sum of its proper divisors (1).

135101154521 is an equidigital number, since it uses as much as digits as its factorization.

135101154521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3000, while the sum is 29.

The spelling of 135101154521 in words is "one hundred thirty-five billion, one hundred one million, one hundred fifty-four thousand, five hundred twenty-one".