445103657 has 4 divisors (see below), whose sum is σ = 446192340. Its totient is φ = 444014976.

The previous prime is 445103653. The next prime is 445103669. The reversal of 445103657 is 756301544.

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 218330176 + 226773481 = 14776^2 + 15059^2 .

It is a cyclic number.

It is not a de Polignac number, because 445103657 - 2² = 445103653 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (445103653) 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, 543728 + ... + 544545.

It is an arithmetic number, because the mean of its divisors is an integer number (111548085).

Almost surely, 2^445103657 is an apocalyptic number.

It is an amenable number.

445103657 is a deficient number, since it is larger than the sum of its proper divisors (1088683).

445103657 is a wasteful number, since it uses less digits than its factorization.

445103657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1088682.

The product of its (nonzero) digits is 50400, while the sum is 35.

The square root of 445103657 is about 21097.4798731981. The cubic root of 445103657 is about 763.5199469799.

The spelling of 445103657 in words is "four hundred forty-five million, one hundred three thousand, six hundred fifty-seven".