1447851145 has 16 divisors (see below), whose sum is σ = 1873161360. Its totient is φ = 1067986944.

The previous prime is 1447851143. The next prime is 1447851149. The reversal of 1447851145 is 5411587441.

It can be written as a sum of positive squares in 8 ways, for example, as 492484864 + 955366281 = 22192^2 + 30909^2 .

It is a cyclic number.

It is not a de Polignac number, because 1447851145 - 2¹ = 1447851143 is a prime.

It is a super-2 number, since 2×1447851145² = 4192545876155622050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1447851098 and 1447851107.

It is not an unprimeable number, because it can be changed into a prime (1447851143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48397 + ... + 72373.

It is an arithmetic number, because the mean of its divisors is an integer number (117072585).

Almost surely, 2^1447851145 is an apocalyptic number.

It is an amenable number.

1447851145 is a deficient number, since it is larger than the sum of its proper divisors (425310215).

1447851145 is a wasteful number, since it uses less digits than its factorization.

1447851145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24924.

The product of its digits is 89600, while the sum is 40.

The square root of 1447851145 is about 38050.6392193351. The cubic root of 1447851145 is about 1131.2917967525.

The spelling of 1447851145 in words is "one billion, four hundred forty-seven million, eight hundred fifty-one thousand, one hundred forty-five".