10142531 has 8 divisors (see below), whose sum is σ = 11781984. Its totient is φ = 8550720.

The previous prime is 10142507. The next prime is 10142537. The reversal of 10142531 is 13524101.

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

It is a cyclic number.

It is not a de Polignac number, because 10142531 - 2⁶ = 10142467 is a prime.

It is a super-2 number, since 2×10142531² = 205741870171922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10142537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11450 + ... + 12303.

It is an arithmetic number, because the mean of its divisors is an integer number (1472748).

Almost surely, 2^10142531 is an apocalyptic number.

10142531 is a deficient number, since it is larger than the sum of its proper divisors (1639453).

10142531 is an equidigital number, since it uses as much as digits as its factorization.

10142531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23821.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 10142531 is about 3184.7340548310. The cubic root of 10142531 is about 216.4622231929.

Adding to 10142531 its reverse (13524101), we get a palindrome (23666632).

The spelling of 10142531 in words is "ten million, one hundred forty-two thousand, five hundred thirty-one".