1020071475 has 66 divisors (see below), whose sum is σ = 1900067996. Its totient is φ = 543250800.

The previous prime is 1020071471. The next prime is 1020071477. The reversal of 1020071475 is 5741700201.

It is not a de Polignac number, because 1020071475 - 2² = 1020071471 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1020071471) by changing a digit.

It is a polite number, since it can be written in 65 ways as a sum of consecutive naturals, for example, 1475880 + ... + 1476570.

Almost surely, 2^1020071475 is an apocalyptic number.

1020071475 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1020071475 is a deficient number, since it is larger than the sum of its proper divisors (879996521).

1020071475 is an frugal number, since it uses more digits than its factorization.

1020071475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 731 (or 699 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 27.

The square root of 1020071475 is about 31938.5578102706. The cubic root of 1020071475 is about 1006.6462215463.

Adding to 1020071475 its reverse (5741700201), we get a palindrome (6761771676).

The spelling of 1020071475 in words is "one billion, twenty million, seventy-one thousand, four hundred seventy-five".