102054242 has 4 divisors (see below), whose sum is σ = 153081366. Its totient is φ = 51027120.

The previous prime is 102054209. The next prime is 102054269. The reversal of 102054242 is 242450201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 100180081 + 1874161 = 10009^2 + 1369^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25513559 + ... + 25513562.

Almost surely, 2^102054242 is an apocalyptic number.

102054242 is a deficient number, since it is larger than the sum of its proper divisors (51027124).

102054242 is an equidigital number, since it uses as much as digits as its factorization.

102054242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51027123.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 102054242 is about 10102.1899605977. The cubic root of 102054242 is about 467.3156805295.

The spelling of 102054242 in words is "one hundred two million, fifty-four thousand, two hundred forty-two".