1020253187 has 2 divisors, whose sum is σ = 1020253188. Its totient is φ = 1020253186.

The previous prime is 1020253139. The next prime is 1020253211. The reversal of 1020253187 is 7813520201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1020253187 - 2²⁶ = 953144323 is a prime.

It is not a weakly prime, because it can be changed into another prime (1020256187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510126593 + 510126594.

It is an arithmetic number, because the mean of its divisors is an integer number (510126594).

Almost surely, 2^1020253187 is an apocalyptic number.

1020253187 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020253187 is an equidigital number, since it uses as much as digits as its factorization.

1020253187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 1020253187 is about 31941.4023956369. The cubic root of 1020253187 is about 1006.7059914880.

Adding to 1020253187 its reverse (7813520201), we get a palindrome (8833773388).

The spelling of 1020253187 in words is "one billion, twenty million, two hundred fifty-three thousand, one hundred eighty-seven".