445154523442 has 4 divisors (see below), whose sum is σ = 667731785166. Its totient is φ = 222577261720.

The previous prime is 445154523409. The next prime is 445154523487. The reversal of 445154523442 is 244325451544.

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

It can be written as a sum of positive squares in only one way, i.e., 398528326681 + 46626196761 = 631291^2 + 215931^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111288630859 + ... + 111288630862.

Almost surely, 2^445154523442 is an apocalyptic number.

445154523442 is a deficient number, since it is larger than the sum of its proper divisors (222577261724).

445154523442 is a wasteful number, since it uses less digits than its factorization.

445154523442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222577261723.

The product of its digits is 1536000, while the sum is 43.

Adding to 445154523442 its reverse (244325451544), we get a palindrome (689479974986).

The spelling of 445154523442 in words is "four hundred forty-five billion, one hundred fifty-four million, five hundred twenty-three thousand, four hundred forty-two".