102630489 has 24 divisors (see below), whose sum is σ = 152209152. Its totient is φ = 61439040.

The previous prime is 102630467. The next prime is 102630557. The reversal of 102630489 is 984036201.

It is not a de Polignac number, because 102630489 - 2¹⁷ = 102499417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102630089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16024 + ... + 21494.

It is an arithmetic number, because the mean of its divisors is an integer number (6342048).

Almost surely, 2^102630489 is an apocalyptic number.

It is an amenable number.

102630489 is a deficient number, since it is larger than the sum of its proper divisors (49578663).

102630489 is a wasteful number, since it uses less digits than its factorization.

102630489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5537 (or 5524 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 102630489 is about 10130.6707082996. The cubic root of 102630489 is about 468.1935927469.

The spelling of 102630489 in words is "one hundred two million, six hundred thirty thousand, four hundred eighty-nine".