102740045 has 8 divisors (see below), whose sum is σ = 127265280. Its totient is φ = 79540560.

The previous prime is 102740039. The next prime is 102740047. The reversal of 102740045 is 540047201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 102740045 - 2¹² = 102735949 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102740045.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102740047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 331265 + ... + 331574.

It is an arithmetic number, because the mean of its divisors is an integer number (15908160).

Almost surely, 2^102740045 is an apocalyptic number.

It is an amenable number.

102740045 is a deficient number, since it is larger than the sum of its proper divisors (24525235).

102740045 is an equidigital number, since it uses as much as digits as its factorization.

102740045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662875.

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 102740045 is about 10136.0764105249. The cubic root of 102740045 is about 468.3601292768.

Adding to 102740045 its reverse (540047201), we get a palindrome (642787246).

The spelling of 102740045 in words is "one hundred two million, seven hundred forty thousand, forty-five".