46249981 has 2 divisors, whose sum is σ = 46249982. Its totient is φ = 46249980.

The previous prime is 46249969. The next prime is 46249991. The reversal of 46249981 is 18994264.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31304025 + 14945956 = 5595^2 + 3866^2 .

It is a cyclic number.

It is not a de Polignac number, because 46249981 - 2⁵ = 46249949 is a prime.

It is a super-2 number, since 2×46249981² = 4278121485000722, which contains 22 as substring.

It is equal to p_2789188 and since 46249981 and 2789188 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (46249921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23124990 + 23124991.

It is an arithmetic number, because the mean of its divisors is an integer number (23124991).

Almost surely, 2^46249981 is an apocalyptic number.

It is an amenable number.

46249981 is a deficient number, since it is larger than the sum of its proper divisors (1).

46249981 is an equidigital number, since it uses as much as digits as its factorization.

46249981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 124416, while the sum is 43.

The square root of 46249981 is about 6800.7338574598. The cubic root of 46249981 is about 358.9526684495.

The spelling of 46249981 in words is "forty-six million, two hundred forty-nine thousand, nine hundred eighty-one".