1020612071 has 4 divisors (see below), whose sum is σ = 1021642944. Its totient is φ = 1019581200.

The previous prime is 1020612053. The next prime is 1020612077. The reversal of 1020612071 is 1702160201.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1020612071 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 (1020612077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 513950 + ... + 515931.

It is an arithmetic number, because the mean of its divisors is an integer number (255410736).

Almost surely, 2^1020612071 is an apocalyptic number.

1020612071 is a deficient number, since it is larger than the sum of its proper divisors (1030873).

1020612071 is an equidigital number, since it uses as much as digits as its factorization.

1020612071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1030872.

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 1020612071 is about 31947.0197514573. The cubic root of 1020612071 is about 1006.8240171975.

Adding to 1020612071 its reverse (1702160201), we get a palindrome (2722772272).

The spelling of 1020612071 in words is "one billion, twenty million, six hundred twelve thousand, seventy-one".