135723151045249 has 2 divisors, whose sum is σ = 135723151045250. Its totient is φ = 135723151045248.

The previous prime is 135723151045217. The next prime is 135723151045367. The reversal of 135723151045249 is 942540151327531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75376168983025 + 60346982062224 = 8681945^2 + 7768332^2 .

It is a cyclic number.

It is not a de Polignac number, because 135723151045249 - 2⁵ = 135723151045217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 135723151045196 and 135723151045205.

It is not a weakly prime, because it can be changed into another prime (135723151042249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67861575522624 + 67861575522625.

It is an arithmetic number, because the mean of its divisors is an integer number (67861575522625).

Almost surely, 2^{135723151045249} is an apocalyptic number.

It is an amenable number.

135723151045249 is a deficient number, since it is larger than the sum of its proper divisors (1).

135723151045249 is an equidigital number, since it uses as much as digits as its factorization.

135723151045249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536000, while the sum is 52.

The spelling of 135723151045249 in words is "one hundred thirty-five trillion, seven hundred twenty-three billion, one hundred fifty-one million, forty-five thousand, two hundred forty-nine".