42051351 has 32 divisors (see below), whose sum is σ = 61480960. Its totient is φ = 25474176.

The previous prime is 42051349. The next prime is 42051391. The reversal of 42051351 is 15315024.

It is not a de Polignac number, because 42051351 - 2¹ = 42051349 is a prime.

It is a super-2 number, since 2×42051351² = 3536632241850402, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42051311) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 267765 + ... + 267921.

It is an arithmetic number, because the mean of its divisors is an integer number (1921280).

Almost surely, 2^42051351 is an apocalyptic number.

42051351 is a deficient number, since it is larger than the sum of its proper divisors (19429609).

42051351 is a wasteful number, since it uses less digits than its factorization.

42051351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 42051351 is about 6484.7013038381. The cubic root of 42051351 is about 347.7442714310.

Adding to 42051351 its reverse (15315024), we get a palindrome (57366375).

The spelling of 42051351 in words is "forty-two million, fifty-one thousand, three hundred fifty-one".