1285655167 has 6 divisors (see below), whose sum is σ = 1298504792. Its totient is φ = 1272812712.

The previous prime is 1285655123. The next prime is 1285655171. The reversal of 1285655167 is 7615565821.

It is a de Polignac number, because none of the positive numbers 2^k-1285655167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1285655867) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 362133 + ... + 365665.

Almost surely, 2^1285655167 is an apocalyptic number.

1285655167 is a deficient number, since it is larger than the sum of its proper divisors (12849625).

1285655167 is an frugal number, since it uses more digits than its factorization.

1285655167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7169 (or 3636 counting only the distinct ones).

The product of its digits is 504000, while the sum is 46.

The square root of 1285655167 is about 35856.0338994708. The cubic root of 1285655167 is about 1087.3637063879.

The spelling of 1285655167 in words is "one billion, two hundred eighty-five million, six hundred fifty-five thousand, one hundred sixty-seven".