102469221 has 6 divisors (see below), whose sum is σ = 148011110. Its totient is φ = 68312808.

The previous prime is 102469219. The next prime is 102469277. The reversal of 102469221 is 122964201.

It can be written as a sum of positive squares in only one way, i.e., 65124900 + 37344321 = 8070^2 + 6111^2 .

It is not a de Polignac number, because 102469221 - 2¹ = 102469219 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102469201) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5692726 + ... + 5692743.

Almost surely, 2^102469221 is an apocalyptic number.

It is an amenable number.

102469221 is a deficient number, since it is larger than the sum of its proper divisors (45541889).

102469221 is a wasteful number, since it uses less digits than its factorization.

102469221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11385475 (or 11385472 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 102469221 is about 10122.7081850659. The cubic root of 102469221 is about 467.9482328233.

The spelling of 102469221 in words is "one hundred two million, four hundred sixty-nine thousand, two hundred twenty-one".