102745742 has 16 divisors (see below), whose sum is σ = 169344000. Its totient is φ = 46365240.

The previous prime is 102745703. The next prime is 102745751. The reversal of 102745742 is 247547201.

It is a junction number, because it is equal to n+sod(n) for n = 102745699 and 102745708.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13742 + ... + 19857.

It is an arithmetic number, because the mean of its divisors is an integer number (10584000).

Almost surely, 2^102745742 is an apocalyptic number.

102745742 is a deficient number, since it is larger than the sum of its proper divisors (66598258).

102745742 is a wasteful number, since it uses less digits than its factorization.

102745742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33751.

The product of its (nonzero) digits is 15680, while the sum is 32.

The square root of 102745742 is about 10136.3574325297. The cubic root of 102745742 is about 468.3687860712.

The spelling of 102745742 in words is "one hundred two million, seven hundred forty-five thousand, seven hundred forty-two".