102061812 has 48 divisors (see below), whose sum is σ = 252866880. Its totient is φ = 31928832.

The previous prime is 102061807. The next prime is 102061847. The reversal of 102061812 is 218160201.

It is a super-2 number, since 2×102061812² = 20833226937446688, which contains 22 as substring.

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, 137739 + ... + 138477.

It is an arithmetic number, because the mean of its divisors is an integer number (5268060).

Almost surely, 2^102061812 is an apocalyptic number.

102061812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102061812 is an abundant number, since it is smaller than the sum of its proper divisors (150805068).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102061812 is a wasteful number, since it uses less digits than its factorization.

102061812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1440 (or 1438 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 21.

The square root of 102061812 is about 10102.5646248861. The cubic root of 102061812 is about 467.3272348173.

The spelling of 102061812 in words is "one hundred two million, sixty-one thousand, eight hundred twelve".