1021285151 has 2 divisors, whose sum is σ = 1021285152. Its totient is φ = 1021285150.

The previous prime is 1021285117. The next prime is 1021285247. The reversal of 1021285151 is 1515821201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1021285151 - 2¹⁰ = 1021284127 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1021285151.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1021285051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510642575 + 510642576.

It is an arithmetic number, because the mean of its divisors is an integer number (510642576).

Almost surely, 2^1021285151 is an apocalyptic number.

1021285151 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021285151 is an equidigital number, since it uses as much as digits as its factorization.

1021285151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 800, while the sum is 26.

The square root of 1021285151 is about 31957.5523311783. The cubic root of 1021285151 is about 1007.0452975485.

The spelling of 1021285151 in words is "one billion, twenty-one million, two hundred eighty-five thousand, one hundred fifty-one".