42154799 has 4 divisors (see below), whose sum is σ = 42732336. Its totient is φ = 41577264.

The previous prime is 42154793. The next prime is 42154807. The reversal of 42154799 is 99745124.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42154799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42154793) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 288659 + ... + 288804.

It is an arithmetic number, because the mean of its divisors is an integer number (10683084).

Almost surely, 2^42154799 is an apocalyptic number.

42154799 is a deficient number, since it is larger than the sum of its proper divisors (577537).

42154799 is an equidigital number, since it uses as much as digits as its factorization.

42154799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577536.

The product of its digits is 90720, while the sum is 41.

The square root of 42154799 is about 6492.6727162240. The cubic root of 42154799 is about 348.0291928432.

The spelling of 42154799 in words is "forty-two million, one hundred fifty-four thousand, seven hundred ninety-nine".