1020151287 has 16 divisors (see below), whose sum is σ = 1590880000. Its totient is φ = 644305752.

The previous prime is 1020151277. The next prime is 1020151289. The reversal of 1020151287 is 7821510201.

It is not a de Polignac number, because 1020151287 - 2⁴ = 1020151271 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 a self number, because there is not a number n which added to its sum of digits gives 1020151287.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020151289) 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 15 ways as a sum of consecutive naturals, for example, 993787 + ... + 994812.

It is an arithmetic number, because the mean of its divisors is an integer number (99430000).

Almost surely, 2^1020151287 is an apocalyptic number.

1020151287 is a deficient number, since it is larger than the sum of its proper divisors (570728713).

1020151287 is a wasteful number, since it uses less digits than its factorization.

1020151287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1988627 (or 1988621 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 27.

The square root of 1020151287 is about 31939.8072473833. The cubic root of 1020151287 is about 1006.6724747239.

Adding to 1020151287 its reverse (7821510201), we get a palindrome (8841661488).

The spelling of 1020151287 in words is "one billion, twenty million, one hundred fifty-one thousand, two hundred eighty-seven".