102021097 has 16 divisors (see below), whose sum is σ = 110778624. Its totient is φ = 93600000.

The previous prime is 102021091. The next prime is 102021109. The reversal of 102021097 is 790120201.

It is a cyclic number.

It is not a de Polignac number, because 102021097 - 2¹⁵ = 101988329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102021091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135472 + ... + 136222.

It is an arithmetic number, because the mean of its divisors is an integer number (6923664).

Almost surely, 2^102021097 is an apocalyptic number.

102021097 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

102021097 is a deficient number, since it is larger than the sum of its proper divisors (8757527).

102021097 is a wasteful number, since it uses less digits than its factorization.

102021097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 960.

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

The square root of 102021097 is about 10100.5493414962. The cubic root of 102021097 is about 467.2650837257.

Adding to 102021097 its reverse (790120201), we get a palindrome (892141298).

The spelling of 102021097 in words is "one hundred two million, twenty-one thousand, ninety-seven".