135716406949 has 2 divisors, whose sum is σ = 135716406950. Its totient is φ = 135716406948.

The previous prime is 135716406937. The next prime is 135716406967. The reversal of 135716406949 is 949604617531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120304922500 + 15411484449 = 346850^2 + 124143^2 .

It is a cyclic number.

It is not a de Polignac number, because 135716406949 - 2⁷ = 135716406821 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 135716406949.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135716406989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67858203474 + 67858203475.

It is an arithmetic number, because the mean of its divisors is an integer number (67858203475).

Almost surely, 2^135716406949 is an apocalyptic number.

It is an amenable number.

135716406949 is a deficient number, since it is larger than the sum of its proper divisors (1).

135716406949 is an equidigital number, since it uses as much as digits as its factorization.

135716406949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4898880, while the sum is 55.

The spelling of 135716406949 in words is "one hundred thirty-five billion, seven hundred sixteen million, four hundred six thousand, nine hundred forty-nine".