1020427655 has 8 divisors (see below), whose sum is σ = 1318706592. Its totient is φ = 753546528.

The previous prime is 1020427633. The next prime is 1020427657. The reversal of 1020427655 is 5567240201.

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 1020427655 - 2⁸ = 1020427399 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 (1020427657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7849379 + ... + 7849508.

It is an arithmetic number, because the mean of its divisors is an integer number (164838324).

Almost surely, 2^1020427655 is an apocalyptic number.

1020427655 is a deficient number, since it is larger than the sum of its proper divisors (298278937).

1020427655 is a wasteful number, since it uses less digits than its factorization.

1020427655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15698905.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 1020427655 is about 31944.1333424465. The cubic root of 1020427655 is about 1006.7633720063.

Adding to 1020427655 its reverse (5567240201), we get a palindrome (6587667856).

The spelling of 1020427655 in words is "one billion, twenty million, four hundred twenty-seven thousand, six hundred fifty-five".