102245742 has 12 divisors (see below), whose sum is σ = 221532480. Its totient is φ = 34081908.

The previous prime is 102245681. The next prime is 102245743. The reversal of 102245742 is 247542201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102245743) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2840142 + ... + 2840177.

It is an arithmetic number, because the mean of its divisors is an integer number (18461040).

Almost surely, 2^102245742 is an apocalyptic number.

102245742 is an abundant number, since it is smaller than the sum of its proper divisors (119286738).

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

102245742 is a wasteful number, since it uses less digits than its factorization.

102245742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5680327 (or 5680324 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 27.

The square root of 102245742 is about 10111.6636613368. The cubic root of 102245742 is about 467.6077965460.

Adding to 102245742 its reverse (247542201), we get a palindrome (349787943).

It can be divided in two parts, 1022 and 45742, that added together give a palindrome (46764).

The spelling of 102245742 in words is "one hundred two million, two hundred forty-five thousand, seven hundred forty-two".