102132392 has 8 divisors (see below), whose sum is σ = 191498250. Its totient is φ = 51066192.

The previous prime is 102132389. The next prime is 102132409. The reversal of 102132392 is 293231201.

It can be written as a sum of positive squares in only one way, i.e., 102131236 + 1156 = 10106^2 + 34^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6383267 + ... + 6383282.

Almost surely, 2^102132392 is an apocalyptic number.

It is an amenable number.

102132392 is a deficient number, since it is larger than the sum of its proper divisors (89365858).

102132392 is a wasteful number, since it uses less digits than its factorization.

102132392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12766555 (or 12766551 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 102132392 is about 10106.0571935844. The cubic root of 102132392 is about 467.4349354196.

Adding to 102132392 its reverse (293231201), we get a palindrome (395363593).

The spelling of 102132392 in words is "one hundred two million, one hundred thirty-two thousand, three hundred ninety-two".