445230031 has 4 divisors (see below), whose sum is σ = 445469112. Its totient is φ = 444990952.

The previous prime is 445230007. The next prime is 445230043. The reversal of 445230031 is 130032544.

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

It is a cyclic number.

It is not a de Polignac number, because 445230031 - 2²⁵ = 411675599 is a prime.

It is a super-2 number, since 2×445230031² = 396459561008521922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 445229984 and 445230011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445230061) 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 in 3 ways as a sum of consecutive naturals, for example, 116725 + ... + 120478.

It is an arithmetic number, because the mean of its divisors is an integer number (111367278).

Almost surely, 2^445230031 is an apocalyptic number.

445230031 is a deficient number, since it is larger than the sum of its proper divisors (239081).

445230031 is a wasteful number, since it uses less digits than its factorization.

445230031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239080.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 445230031 is about 21100.4746629075. The cubic root of 445230031 is about 763.5921997671.

Adding to 445230031 its reverse (130032544), we get a palindrome (575262575).

The spelling of 445230031 in words is "four hundred forty-five million, two hundred thirty thousand, thirty-one".