46228139 has 4 divisors (see below), whose sum is σ = 47303256. Its totient is φ = 45153024.

The previous prime is 46228129. The next prime is 46228157. The reversal of 46228139 is 93182264.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-46228139 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 46228099 and 46228108.

It is not an unprimeable number, because it can be changed into a prime (46228109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 537494 + ... + 537579.

It is an arithmetic number, because the mean of its divisors is an integer number (11825814).

Almost surely, 2^46228139 is an apocalyptic number.

46228139 is a deficient number, since it is larger than the sum of its proper divisors (1075117).

46228139 is a wasteful number, since it uses less digits than its factorization.

46228139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1075116.

The product of its digits is 20736, while the sum is 35.

The square root of 46228139 is about 6799.1278117123. The cubic root of 46228139 is about 358.8961532644.

The spelling of 46228139 in words is "forty-six million, two hundred twenty-eight thousand, one hundred thirty-nine".