1142540245 has 16 divisors (see below), whose sum is σ = 1709359488. Its totient is φ = 712232640.

The previous prime is 1142540227. The next prime is 1142540261. The reversal of 1142540245 is 5420452411.

It is not a de Polignac number, because 1142540245 - 2⁹ = 1142539733 is a prime.

It is a super-2 number, since 2×1142540245² = 2610796422889320050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1483434 + ... + 1484203.

It is an arithmetic number, because the mean of its divisors is an integer number (106834968).

Almost surely, 2^1142540245 is an apocalyptic number.

It is an amenable number.

1142540245 is a deficient number, since it is larger than the sum of its proper divisors (566819243).

1142540245 is a wasteful number, since it uses less digits than its factorization.

1142540245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2967660.

The product of its (nonzero) digits is 6400, while the sum is 28.

The square root of 1142540245 is about 33801.4828816725. The cubic root of 1142540245 is about 1045.4192727047.

Adding to 1142540245 its reverse (5420452411), we get a palindrome (6562992656).

The spelling of 1142540245 in words is "one billion, one hundred forty-two million, five hundred forty thousand, two hundred forty-five".