1142531301 has 4 divisors (see below), whose sum is σ = 1523375072. Its totient is φ = 761687532.

The previous prime is 1142531267. The next prime is 1142531309. The reversal of 1142531301 is 1031352411.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1031352411 = 3 ⋅343784137.

It is not a de Polignac number, because 1142531301 - 2²⁷ = 1008313573 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 (1142531309) 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 3 ways as a sum of consecutive naturals, for example, 190421881 + ... + 190421886.

It is an arithmetic number, because the mean of its divisors is an integer number (380843768).

Almost surely, 2^1142531301 is an apocalyptic number.

It is an amenable number.

1142531301 is a deficient number, since it is larger than the sum of its proper divisors (380843771).

1142531301 is an equidigital number, since it uses as much as digits as its factorization.

1142531301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380843770.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 1142531301 is about 33801.3505795257. The cubic root of 1142531301 is about 1045.4165447907.

Adding to 1142531301 its reverse (1031352411), we get a palindrome (2173883712).

The spelling of 1142531301 in words is "one billion, one hundred forty-two million, five hundred thirty-one thousand, three hundred one".