102734042 has 4 divisors (see below), whose sum is σ = 154101066. Its totient is φ = 51367020.

The previous prime is 102734003. The next prime is 102734053. The reversal of 102734042 is 240437201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 240437201 = 2207 ⋅108943.

It can be written as a sum of positive squares in only one way, i.e., 66601921 + 36132121 = 8161^2 + 6011^2 .

It is a junction number, because it is equal to n+sod(n) for n = 102733999 and 102734017.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25683509 + ... + 25683512.

Almost surely, 2^102734042 is an apocalyptic number.

102734042 is a deficient number, since it is larger than the sum of its proper divisors (51367024).

102734042 is an equidigital number, since it uses as much as digits as its factorization.

102734042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51367023.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 102734042 is about 10135.7802857008. The cubic root of 102734042 is about 468.3510071583.

The spelling of 102734042 in words is "one hundred two million, seven hundred thirty-four thousand, forty-two".