109942542 has 16 divisors (see below), whose sum is σ = 244316880. Its totient is φ = 36647496.

The previous prime is 109942537. The next prime is 109942579. The reversal of 109942542 is 245249901.

109942542 is a `hidden beast` number, since 109 + 9 + 4 + 2 + 542 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 109942497 and 109942506.

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, 1017933 + ... + 1018040.

It is an arithmetic number, because the mean of its divisors is an integer number (15269805).

Almost surely, 2^109942542 is an apocalyptic number.

109942542 is an abundant number, since it is smaller than the sum of its proper divisors (134374338).

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

109942542 is a wasteful number, since it uses less digits than its factorization.

109942542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2035984 (or 2035978 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 109942542 is about 10485.3489212329. The cubic root of 109942542 is about 479.0585452969.

The spelling of 109942542 in words is "one hundred nine million, nine hundred forty-two thousand, five hundred forty-two".