102123274 has 12 divisors (see below), whose sum is σ = 168377202. Its totient is φ = 46419560.

The previous prime is 102123257. The next prime is 102123337. The reversal of 102123274 is 472321201.

It can be written as a sum of positive squares in only one way, i.e., 90117049 + 12006225 = 9493^2 + 3465^2 .

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 210757 + ... + 211240.

Almost surely, 2^102123274 is an apocalyptic number.

102123274 is a deficient number, since it is larger than the sum of its proper divisors (66253928).

102123274 is a wasteful number, since it uses less digits than its factorization.

102123274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422021 (or 422010 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 102123274 is about 10105.6060679209. The cubic root of 102123274 is about 467.4210247217.

Adding to 102123274 its reverse (472321201), we get a palindrome (574444475).

The spelling of 102123274 in words is "one hundred two million, one hundred twenty-three thousand, two hundred seventy-four".