102261005 has 16 divisors (see below), whose sum is σ = 152993664. Its totient is φ = 63746880.

The previous prime is 102260999. The next prime is 102261017. The reversal of 102261005 is 500162201.

It is not a de Polignac number, because 102261005 - 2⁶ = 102260941 is a prime.

It is a super-2 number, since 2×102261005² = 20914626287220050, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132422 + ... + 133191.

It is an arithmetic number, because the mean of its divisors is an integer number (9562104).

Almost surely, 2^102261005 is an apocalyptic number.

It is an amenable number.

102261005 is a deficient number, since it is larger than the sum of its proper divisors (50732659).

102261005 is a wasteful number, since it uses less digits than its factorization.

102261005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265636.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 102261005 is about 10112.4183556655. The cubic root of 102261005 is about 467.6310631797.

The spelling of 102261005 in words is "one hundred two million, two hundred sixty-one thousand, five".