102040292 has 6 divisors (see below), whose sum is σ = 178570518. Its totient is φ = 51020144.

The previous prime is 102040291. The next prime is 102040319. The reversal of 102040292 is 292040201.

It can be written as a sum of positive squares in only one way, i.e., 92467456 + 9572836 = 9616^2 + 3094^2 .

It is not an unprimeable number, because it can be changed into a prime (102040291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12755033 + ... + 12755040.

It is an arithmetic number, because the mean of its divisors is an integer number (29761753).

Almost surely, 2^102040292 is an apocalyptic number.

It is an amenable number.

102040292 is a deficient number, since it is larger than the sum of its proper divisors (76530226).

102040292 is a wasteful number, since it uses less digits than its factorization.

102040292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25510077 (or 25510075 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 102040292 is about 10101.4994926496. The cubic root of 102040292 is about 467.2943867852.

Adding to 102040292 its reverse (292040201), we get a palindrome (394080493).

The spelling of 102040292 in words is "one hundred two million, forty thousand, two hundred ninety-two".