102244651261 has 8 divisors (see below), whose sum is σ = 105072229080. Its totient is φ = 99420452928.

The previous prime is 102244651211. The next prime is 102244651273. The reversal of 102244651261 is 162156442201.

It can be written as a sum of positive squares in 4 ways, for example, as 1114291161 + 101130360100 = 33381^2 + 318010^2 .

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 102244651261 - 2⁹ = 102244650749 is a prime.

It is a super-2 number, since 2×102244651261² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102244651211) 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, 783466 + ... + 904603.

It is an arithmetic number, because the mean of its divisors is an integer number (13134028635).

Almost surely, 2^102244651261 is an apocalyptic number.

It is an amenable number.

102244651261 is a deficient number, since it is larger than the sum of its proper divisors (2827577819).

102244651261 is a wasteful number, since it uses less digits than its factorization.

102244651261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1689743.

The product of its (nonzero) digits is 23040, while the sum is 34.

The spelling of 102244651261 in words is "one hundred two billion, two hundred forty-four million, six hundred fifty-one thousand, two hundred sixty-one".