1012540141 has 4 divisors (see below), whose sum is σ = 1037236284. Its totient is φ = 987844000.

The previous prime is 1012540117. The next prime is 1012540147. The reversal of 1012540141 is 1410452101.

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

It can be written as a sum of positive squares in 2 ways, for example, as 363054916 + 649485225 = 19054^2 + 25485^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1012540141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012540147) 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, 12348010 + ... + 12348091.

It is an arithmetic number, because the mean of its divisors is an integer number (259309071).

Almost surely, 2^1012540141 is an apocalyptic number.

It is an amenable number.

1012540141 is a deficient number, since it is larger than the sum of its proper divisors (24696143).

1012540141 is an equidigital number, since it uses as much as digits as its factorization.

1012540141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24696142.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 1012540141 is about 31820.4359021054. The cubic root of 1012540141 is about 1004.1626949272.

Adding to 1012540141 its reverse (1410452101), we get a palindrome (2422992242).

The spelling of 1012540141 in words is "one billion, twelve million, five hundred forty thousand, one hundred forty-one".