1485603981 has 12 divisors (see below), whose sum is σ = 2148770208. Its totient is φ = 989065224.

The previous prime is 1485603949. The next prime is 1485604009. The reversal of 1485603981 is 1893065841.

1485603981 is a `hidden beast` number, since 1 + 4 + 8 + 560 + 3 + 9 + 81 = 666.

It is not a de Polignac number, because 1485603981 - 2⁵ = 1485603949 is a prime.

It is a super-2 number, since 2×1485603981² = 4414038376726096722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1485603941) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 104395 + ... + 117768.

It is an arithmetic number, because the mean of its divisors is an integer number (179064184).

Almost surely, 2^1485603981 is an apocalyptic number.

It is an amenable number.

1485603981 is a deficient number, since it is larger than the sum of its proper divisors (663166227).

1485603981 is a wasteful number, since it uses less digits than its factorization.

1485603981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222912 (or 222909 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The square root of 1485603981 is about 38543.5335821717. The cubic root of 1485603981 is about 1141.0403914069.

The spelling of 1485603981 in words is "one billion, four hundred eighty-five million, six hundred three thousand, nine hundred eighty-one".