42302131 has 8 divisors (see below), whose sum is σ = 42692544. Its totient is φ = 41913960.

The previous prime is 42302101. The next prime is 42302147. The reversal of 42302131 is 13120324.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42302131 is a prime.

It is a super-2 number, since 2×42302131² = 3578940574282322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42302101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74856 + ... + 75418.

It is an arithmetic number, because the mean of its divisors is an integer number (5336568).

Almost surely, 2^42302131 is an apocalyptic number.

42302131 is a deficient number, since it is larger than the sum of its proper divisors (390413).

42302131 is a wasteful number, since it uses less digits than its factorization.

42302131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1121.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 42302131 is about 6504.0088407074. The cubic root of 42302131 is about 348.4341780978.

Adding to 42302131 its reverse (13120324), we get a palindrome (55422455).

The spelling of 42302131 in words is "forty-two million, three hundred two thousand, one hundred thirty-one".