1020242755 has 8 divisors (see below), whose sum is σ = 1399190112. Its totient is φ = 699595008.

The previous prime is 1020242749. The next prime is 1020242789. The reversal of 1020242755 is 5572420201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1020242755 - 2³ = 1020242747 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14574862 + ... + 14574931.

It is an arithmetic number, because the mean of its divisors is an integer number (174898764).

Almost surely, 2^1020242755 is an apocalyptic number.

1020242755 is a deficient number, since it is larger than the sum of its proper divisors (378947357).

1020242755 is an equidigital number, since it uses as much as digits as its factorization.

1020242755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29149805.

The product of its (nonzero) digits is 5600, while the sum is 28.

The square root of 1020242755 is about 31941.2390961904. The cubic root of 1020242755 is about 1006.7025603159.

Adding to 1020242755 its reverse (5572420201), we get a palindrome (6592662956).

The spelling of 1020242755 in words is "one billion, twenty million, two hundred forty-two thousand, seven hundred fifty-five".