102665053 has 4 divisors (see below), whose sum is σ = 102704508. Its totient is φ = 102625600.

The previous prime is 102665041. The next prime is 102665071. The reversal of 102665053 is 350566201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 350566201 = 139 ⋅2522059.

It can be written as a sum of positive squares in 2 ways, for example, as 46744569 + 55920484 = 6837^2 + 7478^2 .

It is a cyclic number.

It is not a de Polignac number, because 102665053 - 2⁵ = 102665021 is a prime.

It is a super-2 number, since 2×102665053² = 21080226214985618, which 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 (102665653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15526 + ... + 21127.

It is an arithmetic number, because the mean of its divisors is an integer number (25676127).

Almost surely, 2^102665053 is an apocalyptic number.

It is an amenable number.

102665053 is a deficient number, since it is larger than the sum of its proper divisors (39455).

102665053 is an equidigital number, since it uses as much as digits as its factorization.

102665053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39454.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 102665053 is about 10132.3764734637. The cubic root of 102665053 is about 468.2461464184.

The spelling of 102665053 in words is "one hundred two million, six hundred sixty-five thousand, fifty-three".