102135849 has 8 divisors (see below), whose sum is σ = 143348640. Its totient is φ = 64506816.

The previous prime is 102135827. The next prime is 102135851. The reversal of 102135849 is 948531201.

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

It is not a de Polignac number, because 102135849 - 2¹⁹ = 101611561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102135349) 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, 895872 + ... + 895985.

It is an arithmetic number, because the mean of its divisors is an integer number (17918580).

Almost surely, 2^102135849 is an apocalyptic number.

102135849 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

102135849 is a deficient number, since it is larger than the sum of its proper divisors (41212791).

102135849 is a wasteful number, since it uses less digits than its factorization.

102135849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1791879.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 102135849 is about 10106.2282281769. The cubic root of 102135849 is about 467.4402093075.

The spelling of 102135849 in words is "one hundred two million, one hundred thirty-five thousand, eight hundred forty-nine".