135772241587 has 2 divisors, whose sum is σ = 135772241588. Its totient is φ = 135772241586.

The previous prime is 135772241543. The next prime is 135772241611. The reversal of 135772241587 is 785142277531.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 135772241587 - 2³⁵ = 101412503219 is a prime.

It is not a weakly prime, because it can be changed into another prime (135772341587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67886120793 + 67886120794.

It is an arithmetic number, because the mean of its divisors is an integer number (67886120794).

Almost surely, 2^135772241587 is an apocalyptic number.

135772241587 is a deficient number, since it is larger than the sum of its proper divisors (1).

135772241587 is an equidigital number, since it uses as much as digits as its factorization.

135772241587 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3292800, while the sum is 52.

The spelling of 135772241587 in words is "one hundred thirty-five billion, seven hundred seventy-two million, two hundred forty-one thousand, five hundred eighty-seven".