1012542511 has 4 divisors (see below), whose sum is σ = 1047457800. Its totient is φ = 977627224.

The previous prime is 1012542497. The next prime is 1012542523. The reversal of 1012542511 is 1152452101.

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 1012542511 - 2⁷ = 1012542383 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 (1012542541) 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, 17457601 + ... + 17457658.

It is an arithmetic number, because the mean of its divisors is an integer number (261864450).

Almost surely, 2^1012542511 is an apocalyptic number.

1012542511 is a deficient number, since it is larger than the sum of its proper divisors (34915289).

1012542511 is an equidigital number, since it uses as much as digits as its factorization.

1012542511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34915288.

The product of its (nonzero) digits is 400, while the sum is 22.

The square root of 1012542511 is about 31820.4731423026. The cubic root of 1012542511 is about 1004.1634783903.

Adding to 1012542511 its reverse (1152452101), we get a palindrome (2164994612).

The spelling of 1012542511 in words is "one billion, twelve million, five hundred forty-two thousand, five hundred eleven".