78054102 has 24 divisors (see below), whose sum is σ = 193277136. Its totient is φ = 22301136.

The previous prime is 78054101. The next prime is 78054131. The reversal of 78054102 is 20145087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78054101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 309613 + ... + 309864.

It is an arithmetic number, because the mean of its divisors is an integer number (8053214).

Almost surely, 2^78054102 is an apocalyptic number.

78054102 is an abundant number, since it is smaller than the sum of its proper divisors (115223034).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78054102 is a wasteful number, since it uses less digits than its factorization.

78054102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 619492 (or 619489 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 78054102 is about 8834.8232579945. The cubic root of 78054102 is about 427.3646313986.

Adding to 78054102 its reverse (20145087), we get a palindrome (98199189).

The spelling of 78054102 in words is "seventy-eight million, fifty-four thousand, one hundred two".