42136977 has 8 divisors (see below), whose sum is σ = 56391040. Its totient is φ = 27987120.

The previous prime is 42136951. The next prime is 42136993. The reversal of 42136977 is 77963124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42136977 - 2¹⁴ = 42120593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42136937) 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, 25102 + ... + 26727.

It is an arithmetic number, because the mean of its divisors is an integer number (7048880).

Almost surely, 2^42136977 is an apocalyptic number.

It is an amenable number.

42136977 is a deficient number, since it is larger than the sum of its proper divisors (14254063).

42136977 is a wasteful number, since it uses less digits than its factorization.

42136977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52103.

The product of its digits is 63504, while the sum is 39.

The square root of 42136977 is about 6491.3001009043. The cubic root of 42136977 is about 347.9801399024.

The spelling of 42136977 in words is "forty-two million, one hundred thirty-six thousand, nine hundred seventy-seven".