1142525505 has 32 divisors (see below), whose sum is σ = 2031868800. Its totient is φ = 543495680.

The previous prime is 1142525497. The next prime is 1142525507. The reversal of 1142525505 is 5055252411.

It is not a de Polignac number, because 1142525505 - 2³ = 1142525497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1142525507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56580 + ... + 74069.

It is an arithmetic number, because the mean of its divisors is an integer number (63495900).

Almost surely, 2^1142525505 is an apocalyptic number.

1142525505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1142525505 is a deficient number, since it is larger than the sum of its proper divisors (889343295).

1142525505 is a wasteful number, since it uses less digits than its factorization.

1142525505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130721.

The product of its (nonzero) digits is 10000, while the sum is 30.

The square root of 1142525505 is about 33801.2648431978. The cubic root of 1142525505 is about 1045.4147770070.

Adding to 1142525505 its reverse (5055252411), we get a palindrome (6197777916).

The spelling of 1142525505 in words is "one billion, one hundred forty-two million, five hundred twenty-five thousand, five hundred five".