46301981 has 6 divisors (see below), whose sum is σ = 50894046. Its totient is φ = 42092600.

The previous prime is 46301963. The next prime is 46301987. The reversal of 46301981 is 18910364.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 33988900 + 12313081 = 5830^2 + 3509^2 .

It is not a de Polignac number, because 46301981 - 2²² = 42107677 is a prime.

It is a super-2 number, since 2×46301981² = 4287746889048722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (46301987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 191210 + ... + 191451.

It is an arithmetic number, because the mean of its divisors is an integer number (8482341).

Almost surely, 2^46301981 is an apocalyptic number.

It is an amenable number.

46301981 is a deficient number, since it is larger than the sum of its proper divisors (4592065).

46301981 is a wasteful number, since it uses less digits than its factorization.

46301981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382683 (or 382672 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 46301981 is about 6804.5559002774. Note that the first 3 decimals coincide. The cubic root of 46301981 is about 359.0871445246.

The spelling of 46301981 in words is "forty-six million, three hundred one thousand, nine hundred eighty-one".