46142531 has 4 divisors (see below), whose sum is σ = 48148752. Its totient is φ = 44136312.

The previous prime is 46142527. The next prime is 46142563. The reversal of 46142531 is 13524164.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 46142531 - 2² = 46142527 is a prime.

It is a super-2 number, since 2×46142531² = 4258266334171922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 46142531.

It is not an unprimeable number, because it can be changed into a prime (46141531) 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, 1003076 + ... + 1003121.

It is an arithmetic number, because the mean of its divisors is an integer number (12037188).

Almost surely, 2^46142531 is an apocalyptic number.

46142531 is a deficient number, since it is larger than the sum of its proper divisors (2006221).

46142531 is a wasteful number, since it uses less digits than its factorization.

46142531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2006220.

The product of its digits is 2880, while the sum is 26.

The square root of 46142531 is about 6792.8293810459. The cubic root of 46142531 is about 358.6744746661.

Adding to 46142531 its reverse (13524164), we get a palindrome (59666695).

The spelling of 46142531 in words is "forty-six million, one hundred forty-two thousand, five hundred thirty-one".