42151365 has 12 divisors (see below), whose sum is σ = 73062444. Its totient is φ = 22480704.

The previous prime is 42151357. The next prime is 42151391. The reversal of 42151365 is 56315124.

It can be written as a sum of positive squares in 2 ways, for example, as 6796449 + 35354916 = 2607^2 + 5946^2 .

It is not a de Polignac number, because 42151365 - 2³ = 42151357 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 468304 + ... + 468393.

It is an arithmetic number, because the mean of its divisors is an integer number (6088537).

Almost surely, 2^42151365 is an apocalyptic number.

42151365 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

42151365 is a deficient number, since it is larger than the sum of its proper divisors (30911079).

42151365 is a wasteful number, since it uses less digits than its factorization.

42151365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 936708 (or 936705 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 42151365 is about 6492.4082588821. The cubic root of 42151365 is about 348.0197422411.

Adding to 42151365 its reverse (56315124), we get a palindrome (98466489).

The spelling of 42151365 in words is "forty-two million, one hundred fifty-one thousand, three hundred sixty-five".