102146742 has 12 divisors (see below), whose sum is σ = 221317980. Its totient is φ = 34048908.

The previous prime is 102146713. The next prime is 102146771. The reversal of 102146742 is 247641201.

It is an interprime number because it is at equal distance from previous prime (102146713) and next prime (102146771).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2837392 + ... + 2837427.

It is an arithmetic number, because the mean of its divisors is an integer number (18443165).

Almost surely, 2^102146742 is an apocalyptic number.

102146742 is an abundant number, since it is smaller than the sum of its proper divisors (119171238).

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

102146742 is a wasteful number, since it uses less digits than its factorization.

102146742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5674827 (or 5674824 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 102146742 is about 10106.7671389025. The cubic root of 102146742 is about 467.4568265392.

Adding to 102146742 its reverse (247641201), we get a palindrome (349787943).

The spelling of 102146742 in words is "one hundred two million, one hundred forty-six thousand, seven hundred forty-two".