42151504 has 20 divisors (see below), whose sum is σ = 82221300. Its totient is φ = 20933120.

The previous prime is 42151489. The next prime is 42151507. The reversal of 42151504 is 40515124.

It can be written as a sum of positive squares in 2 ways, for example, as 7952400 + 34199104 = 2820^2 + 5848^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42151507) 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, 6457 + ... + 11224.

It is an arithmetic number, because the mean of its divisors is an integer number (4111065).

Almost surely, 2^42151504 is an apocalyptic number.

It is an amenable number.

42151504 is a deficient number, since it is larger than the sum of its proper divisors (40069796).

42151504 is a wasteful number, since it uses less digits than its factorization.

42151504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17838 (or 17832 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 42151504 is about 6492.4189636837. The cubic root of 42151504 is about 348.0201247885.

Adding to 42151504 its reverse (40515124), we get a palindrome (82666628).

The spelling of 42151504 in words is "forty-two million, one hundred fifty-one thousand, five hundred four".