102070655 has 8 divisors (see below), whose sum is σ = 122539392. Its totient is φ = 81620128.

The previous prime is 102070651. The next prime is 102070667. The reversal of 102070655 is 556070201.

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 102070655 - 2² = 102070651 is a prime.

It is a super-2 number, since 2×102070655² = 20836837224258050, 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 (102070651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17522 + ... + 22608.

It is an arithmetic number, because the mean of its divisors is an integer number (15317424).

Almost surely, 2^102070655 is an apocalyptic number.

102070655 is a deficient number, since it is larger than the sum of its proper divisors (20468737).

102070655 is an equidigital number, since it uses as much as digits as its factorization.

102070655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9105.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 102070655 is about 10103.0022765513. The cubic root of 102070655 is about 467.3407313945.

The spelling of 102070655 in words is "one hundred two million, seventy thousand, six hundred fifty-five".