1071449287 has 2 divisors, whose sum is σ = 1071449288. Its totient is φ = 1071449286.

The previous prime is 1071449261. The next prime is 1071449299. The reversal of 1071449287 is 7829441701.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1071449287 - 2¹⁵ = 1071416519 is a prime.

It is a super-2 number, since 2×1071449287² = 2296007149225616738, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1071449237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 535724643 + 535724644.

It is an arithmetic number, because the mean of its divisors is an integer number (535724644).

Almost surely, 2^1071449287 is an apocalyptic number.

1071449287 is a deficient number, since it is larger than the sum of its proper divisors (1).

1071449287 is an equidigital number, since it uses as much as digits as its factorization.

1071449287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112896, while the sum is 43.

The square root of 1071449287 is about 32732.9999694498. Note that the first 4 decimals coincide. The cubic root of 1071449287 is about 1023.2707028293.

The spelling of 1071449287 in words is "one billion, seventy-one million, four hundred forty-nine thousand, two hundred eighty-seven".