1453145442 has 32 divisors (see below), whose sum is σ = 3323400192. Its totient is φ = 414943824.

The previous prime is 1453145387. The next prime is 1453145509. The reversal of 1453145442 is 2445413541.

It is a happy number.

It is a super-2 number, since 2×1453145442² = 4223263351210750728, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71023 + ... + 89165.

It is an arithmetic number, because the mean of its divisors is an integer number (103856256).

Almost surely, 2^1453145442 is an apocalyptic number.

1453145442 is an abundant number, since it is smaller than the sum of its proper divisors (1870254750).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1453145442 is a wasteful number, since it uses less digits than its factorization.

1453145442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20062.

The product of its digits is 38400, while the sum is 33.

The square root of 1453145442 is about 38120.1448318340. The cubic root of 1453145442 is about 1132.6690352876.

Adding to 1453145442 its reverse (2445413541), we get a palindrome (3898558983).

The spelling of 1453145442 in words is "one billion, four hundred fifty-three million, one hundred forty-five thousand, four hundred forty-two".