1445131 has 4 divisors (see below), whose sum is σ = 1449000. Its totient is φ = 1441264.

The previous prime is 1445117. The next prime is 1445137. The reversal of 1445131 is 1315441.

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 1445131 - 2¹¹ = 1443083 is a prime.

It is a super-2 number, since 2×1445131² = 4176807214322, which contains 22 as substring.

It is a Duffinian number.

1445131 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1445099 and 1445108.

It is not an unprimeable number, because it can be changed into a prime (1445137) 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, 1306 + ... + 2143.

It is an arithmetic number, because the mean of its divisors is an integer number (362250).

2^1445131 is an apocalyptic number.

1445131 is a deficient number, since it is larger than the sum of its proper divisors (3869).

1445131 is an equidigital number, since it uses as much as digits as its factorization.

1445131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3868.

The product of its digits is 240, while the sum is 19.

The square root of 1445131 is about 1202.1360155989. The cubic root of 1445131 is about 113.0582882513.

The spelling of 1445131 in words is "one million, four hundred forty-five thousand, one hundred thirty-one".