1445403142 has 4 divisors (see below), whose sum is σ = 2168104716. Its totient is φ = 722701570.

The previous prime is 1445403133. The next prime is 1445403143. The reversal of 1445403142 is 2413045441.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1445403142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1445403143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361350784 + ... + 361350787.

It is an arithmetic number, because the mean of its divisors is an integer number (542026179).

Almost surely, 2^1445403142 is an apocalyptic number.

1445403142 is a deficient number, since it is larger than the sum of its proper divisors (722701574).

1445403142 is an equidigital number, since it uses as much as digits as its factorization.

1445403142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722701573.

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 1445403142 is about 38018.4579119143. The cubic root of 1445403142 is about 1130.6538471926.

Adding to 1445403142 its reverse (2413045441), we get a palindrome (3858448583).

The spelling of 1445403142 in words is "one billion, four hundred forty-five million, four hundred three thousand, one hundred forty-two".