42155116 has 6 divisors (see below), whose sum is σ = 73771460. Its totient is φ = 21077556.

The previous prime is 42155107. The next prime is 42155131. The reversal of 42155116 is 61155124.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5269386 + ... + 5269393.

Almost surely, 2^42155116 is an apocalyptic number.

It is an amenable number.

42155116 is a deficient number, since it is larger than the sum of its proper divisors (31616344).

42155116 is a wasteful number, since it uses less digits than its factorization.

42155116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10538783 (or 10538781 counting only the distinct ones).

The product of its digits is 1200, while the sum is 25.

The square root of 42155116 is about 6492.6971283127. The cubic root of 42155116 is about 348.0300652230.

The spelling of 42155116 in words is "forty-two million, one hundred fifty-five thousand, one hundred sixteen".