135211450652251 has 8 divisors (see below), whose sum is σ = 138509448462000. Its totient is φ = 131913460344960.

The previous prime is 135211450652221. The next prime is 135211450652339. The reversal of 135211450652251 is 152256054112531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 135211450652251 - 2⁵ = 135211450652219 is a prime.

It is a super-2 number, since 2×135211450652251² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 135211450652198 and 135211450652207.

It is not an unprimeable number, because it can be changed into a prime (135211450652221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56495775 + ... + 58840423.

It is an arithmetic number, because the mean of its divisors is an integer number (17313681057750).

Almost surely, 2^{135211450652251} is an apocalyptic number.

135211450652251 is a deficient number, since it is larger than the sum of its proper divisors (3297997809749).

135211450652251 is a wasteful number, since it uses less digits than its factorization.

135211450652251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3751229.

The product of its (nonzero) digits is 360000, while the sum is 43.

The spelling of 135211450652251 in words is "one hundred thirty-five trillion, two hundred eleven billion, four hundred fifty million, six hundred fifty-two thousand, two hundred fifty-one".