102930142 has 16 divisors (see below), whose sum is σ = 177579360. Its totient is φ = 43831008.

The previous prime is 102930133. The next prime is 102930143. The reversal of 102930142 is 241039201.

It is a super-2 number, since 2×102930142² = 21189228264280328, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102930143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21217 + ... + 25612.

It is an arithmetic number, because the mean of its divisors is an integer number (11098710).

Almost surely, 2^102930142 is an apocalyptic number.

102930142 is a deficient number, since it is larger than the sum of its proper divisors (74649218).

102930142 is a wasteful number, since it uses less digits than its factorization.

102930142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46995.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 102930142 is about 10145.4493246973. The cubic root of 102930142 is about 468.6488158015.

Adding to 102930142 its reverse (241039201), we get a palindrome (343969343).

The spelling of 102930142 in words is "one hundred two million, nine hundred thirty thousand, one hundred forty-two".