1125142541 has 16 divisors (see below), whose sum is σ = 1184924160. Its totient is φ = 1067214720.

The previous prime is 1125142523. The next prime is 1125142553. The reversal of 1125142541 is 1452415211.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1125142541 - 2⁶ = 1125142477 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1125142541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125142511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 300680 + ... + 304398.

It is an arithmetic number, because the mean of its divisors is an integer number (74057760).

Almost surely, 2^1125142541 is an apocalyptic number.

It is an amenable number.

1125142541 is a deficient number, since it is larger than the sum of its proper divisors (59781619).

1125142541 is a wasteful number, since it uses less digits than its factorization.

1125142541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3964.

The product of its digits is 1600, while the sum is 26.

The square root of 1125142541 is about 33543.1444709646. The cubic root of 1125142541 is about 1040.0858351862.

Adding to 1125142541 its reverse (1452415211), we get a palindrome (2577557752).

The spelling of 1125142541 in words is "one billion, one hundred twenty-five million, one hundred forty-two thousand, five hundred forty-one".