445505115131 has 4 divisors (see below), whose sum is σ = 471711298392. Its totient is φ = 419298931872.

The previous prime is 445505115089. The next prime is 445505115227. The reversal of 445505115131 is 131511505544.

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 445505115131 - 2⁶ = 445505115067 is a prime.

It is a super-2 number, since 2×445505115131² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 445505115091 and 445505115100.

It is not an unprimeable number, because it can be changed into a prime (445505115031) 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, 13103091605 + ... + 13103091638.

It is an arithmetic number, because the mean of its divisors is an integer number (117927824598).

Almost surely, 2^445505115131 is an apocalyptic number.

445505115131 is a deficient number, since it is larger than the sum of its proper divisors (26206183261).

445505115131 is a wasteful number, since it uses less digits than its factorization.

445505115131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26206183260.

The product of its (nonzero) digits is 30000, while the sum is 35.

The spelling of 445505115131 in words is "four hundred forty-five billion, five hundred five million, one hundred fifteen thousand, one hundred thirty-one".