42154034 has 8 divisors (see below), whose sum is σ = 68095020. Its totient is φ = 19455696.

The previous prime is 42154031. The next prime is 42154043. The reversal of 42154034 is 43045124.

It can be written as a sum of positive squares in 2 ways, for example, as 40998409 + 1155625 = 6403^2 + 1075^2 .

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

It is a super-3 number, since 3×42154034³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (42154031) 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, 810629 + ... + 810680.

Almost surely, 2^42154034 is an apocalyptic number.

42154034 is a deficient number, since it is larger than the sum of its proper divisors (25940986).

42154034 is a wasteful number, since it uses less digits than its factorization.

42154034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1621324.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 42154034 is about 6492.6138033923. The cubic root of 42154034 is about 348.0270875555.

Adding to 42154034 its reverse (43045124), we get a palindrome (85199158).

The spelling of 42154034 in words is "forty-two million, one hundred fifty-four thousand, thirty-four".