1525231141 has 4 divisors (see below), whose sum is σ = 1743121312. Its totient is φ = 1307340972.

The previous prime is 1525231139. The next prime is 1525231153. The reversal of 1525231141 is 1411325251.

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.

It is not a de Polignac number, because 1525231141 - 2¹ = 1525231139 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 (1525231111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108945075 + ... + 108945088.

It is an arithmetic number, because the mean of its divisors is an integer number (435780328).

Almost surely, 2^1525231141 is an apocalyptic number.

It is an amenable number.

1525231141 is a deficient number, since it is larger than the sum of its proper divisors (217890171).

1525231141 is an equidigital number, since it uses as much as digits as its factorization.

1525231141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217890170.

The product of its digits is 1200, while the sum is 25.

The square root of 1525231141 is about 39054.2077246486. The cubic root of 1525231141 is about 1151.0969095410.

Adding to 1525231141 its reverse (1411325251), we get a palindrome (2936556392).

It can be divided in two parts, 152523 and 1141, that added together give a square (153664 = 392²).

The spelling of 1525231141 in words is "one billion, five hundred twenty-five million, two hundred thirty-one thousand, one hundred forty-one".