102532742 has 16 divisors (see below), whose sum is σ = 166017600. Its totient is φ = 47212032.

The previous prime is 102532741. The next prime is 102532751. The reversal of 102532742 is 247235201.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102532741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7283 + ... + 16065.

It is an arithmetic number, because the mean of its divisors is an integer number (10376100).

Almost surely, 2^102532742 is an apocalyptic number.

102532742 is a deficient number, since it is larger than the sum of its proper divisors (63484858).

102532742 is a wasteful number, since it uses less digits than its factorization.

102532742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9247.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 102532742 is about 10125.8452486694. The cubic root of 102532742 is about 468.0449070552.

Adding to 102532742 its reverse (247235201), we get a palindrome (349767943).

The spelling of 102532742 in words is "one hundred two million, five hundred thirty-two thousand, seven hundred forty-two".