102127090 has 64 divisors (see below), whose sum is σ = 210470400. Its totient is φ = 35368704.

The previous prime is 102127063. The next prime is 102127093. The reversal of 102127090 is 90721201.

It is not an unprimeable number, because it can be changed into a prime (102127093) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 427191 + ... + 427429.

It is an arithmetic number, because the mean of its divisors is an integer number (3288600).

Almost surely, 2^102127090 is an apocalyptic number.

102127090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102127090 is an abundant number, since it is smaller than the sum of its proper divisors (108343310).

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

102127090 is a wasteful number, since it uses less digits than its factorization.

102127090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451.

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 102127090 is about 10105.7948722503. The cubic root of 102127090 is about 467.4268466280.

Adding to 102127090 its reverse (90721201), we get a palindrome (192848291).

The spelling of 102127090 in words is "one hundred two million, one hundred twenty-seven thousand, ninety".