46221239 has 2 divisors, whose sum is σ = 46221240. Its totient is φ = 46221238.

The previous prime is 46221233. The next prime is 46221277. The reversal of 46221239 is 93212264.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 46221239 - 2²⁰ = 45172663 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (46221233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23110619 + 23110620.

It is an arithmetic number, because the mean of its divisors is an integer number (23110620).

Almost surely, 2^46221239 is an apocalyptic number.

46221239 is a deficient number, since it is larger than the sum of its proper divisors (1).

46221239 is an equidigital number, since it uses as much as digits as its factorization.

46221239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 29.

The square root of 46221239 is about 6798.6203747525. The cubic root of 46221239 is about 358.8782961271.

Subtracting 46221239 from its reverse (93212264), we obtain a square (46991025 = 6855²).

The spelling of 46221239 in words is "forty-six million, two hundred twenty-one thousand, two hundred thirty-nine".