42151401 has 8 divisors (see below), whose sum is σ = 62446560. Its totient is φ = 28100916.

The previous prime is 42151391. The next prime is 42151409. The reversal of 42151401 is 10415124.

42151401 = 681² + 682² + ... + 761².

42151401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42151401 - 2⁶ = 42151337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42151409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 780555 + ... + 780608.

It is an arithmetic number, because the mean of its divisors is an integer number (7805820).

Almost surely, 2^42151401 is an apocalyptic number.

It is an amenable number.

42151401 is a deficient number, since it is larger than the sum of its proper divisors (20295159).

42151401 is a wasteful number, since it uses less digits than its factorization.

42151401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1561172 (or 1561166 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 42151401 is about 6492.4110313504. The cubic root of 42151401 is about 348.0198413182.

Adding to 42151401 its reverse (10415124), we get a palindrome (52566525).

The spelling of 42151401 in words is "forty-two million, one hundred fifty-one thousand, four hundred one".