46139869 has 4 divisors (see below), whose sum is σ = 46771996. Its totient is φ = 45507744.

The previous prime is 46139867. The next prime is 46139879. The reversal of 46139869 is 96893164.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14364100 + 31775769 = 3790^2 + 5637^2 .

It is a cyclic number.

It is not a de Polignac number, because 46139869 - 2¹ = 46139867 is a prime.

It is a super-2 number, since 2×46139869² = 4257775022674322, 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 (46139867) 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 3 ways as a sum of consecutive naturals, for example, 315954 + ... + 316099.

It is an arithmetic number, because the mean of its divisors is an integer number (11692999).

Almost surely, 2^46139869 is an apocalyptic number.

It is an amenable number.

46139869 is a deficient number, since it is larger than the sum of its proper divisors (632127).

46139869 is an equidigital number, since it uses as much as digits as its factorization.

46139869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632126.

The product of its digits is 279936, while the sum is 46.

The square root of 46139869 is about 6792.6334363044. The cubic root of 46139869 is about 358.6675771264.

The spelling of 46139869 in words is "forty-six million, one hundred thirty-nine thousand, eight hundred sixty-nine".