1142400141 has 12 divisors (see below), whose sum is σ = 1672739068. Its totient is φ = 751166784.

The previous prime is 1142400113. The next prime is 1142400157. The reversal of 1142400141 is 1410042411.

It can be written as a sum of positive squares in 2 ways, for example, as 666724041 + 475676100 = 25821^2 + 21810^2 .

It is not a de Polignac number, because 1142400141 - 2¹⁹ = 1141875853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142400191) 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 11 ways as a sum of consecutive naturals, for example, 868750 + ... + 870063.

Almost surely, 2^1142400141 is an apocalyptic number.

It is an amenable number.

1142400141 is a deficient number, since it is larger than the sum of its proper divisors (530338927).

1142400141 is a wasteful number, since it uses less digits than its factorization.

1142400141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1738892 (or 1738889 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 1142400141 is about 33799.4103646794. The cubic root of 1142400141 is about 1045.3765394444.

Adding to 1142400141 its reverse (1410042411), we get a palindrome (2552442552).

The spelling of 1142400141 in words is "one billion, one hundred forty-two million, four hundred thousand, one hundred forty-one".