1142354445 has 16 divisors (see below), whose sum is σ = 1828200192. Its totient is φ = 609111360.

The previous prime is 1142354441. The next prime is 1142354483. The reversal of 1142354445 is 5444532411.

It is a happy number.

It is not a de Polignac number, because 1142354445 - 2² = 1142354441 is a prime.

It is a super-2 number, since 2×1142354445² = 2609947356022516050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142354441) 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 in 15 ways as a sum of consecutive naturals, for example, 95340 + ... + 106650.

It is an arithmetic number, because the mean of its divisors is an integer number (114262512).

Almost surely, 2^1142354445 is an apocalyptic number.

1142354445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1142354445 is a deficient number, since it is larger than the sum of its proper divisors (685845747).

1142354445 is a wasteful number, since it uses less digits than its factorization.

1142354445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18052.

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

The square root of 1142354445 is about 33798.7343697956. The cubic root of 1142354445 is about 1045.3626009064.

Adding to 1142354445 its reverse (5444532411), we get a palindrome (6586886856).

The spelling of 1142354445 in words is "one billion, one hundred forty-two million, three hundred fifty-four thousand, four hundred forty-five".