102061655 has 8 divisors (see below), whose sum is σ = 123285984. Its totient is φ = 81108000.

The previous prime is 102061633. The next prime is 102061657. The reversal of 102061655 is 556160201.

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

It is not a de Polignac number, because 102061655 - 2²⁶ = 34952791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102061657) 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, 66836 + ... + 68345.

It is an arithmetic number, because the mean of its divisors is an integer number (15410748).

Almost surely, 2^102061655 is an apocalyptic number.

102061655 is a deficient number, since it is larger than the sum of its proper divisors (21224329).

102061655 is a wasteful number, since it uses less digits than its factorization.

102061655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135337.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 102061655 is about 10102.5568545789. The cubic root of 102061655 is about 467.3269951899.

The spelling of 102061655 in words is "one hundred two million, sixty-one thousand, six hundred fifty-five".