1361546985 has 32 divisors (see below), whose sum is σ = 2280250368. Its totient is φ = 692429760.

The previous prime is 1361546981. The next prime is 1361546993. The reversal of 1361546985 is 5896451631.

It is not a de Polignac number, because 1361546985 - 2² = 1361546981 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1361546981) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 108234 + ... + 120156.

It is an arithmetic number, because the mean of its divisors is an integer number (71257824).

Almost surely, 2^1361546985 is an apocalyptic number.

1361546985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1361546985 is a deficient number, since it is larger than the sum of its proper divisors (918703383).

1361546985 is a wasteful number, since it uses less digits than its factorization.

1361546985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12285.

The product of its digits is 777600, while the sum is 48.

The square root of 1361546985 is about 36899.1461283320. The cubic root of 1361546985 is about 1108.3515788480.

The spelling of 1361546985 in words is "one billion, three hundred sixty-one million, five hundred forty-six thousand, nine hundred eighty-five".