1523423141 has 2 divisors, whose sum is σ = 1523423142. Its totient is φ = 1523423140.

The previous prime is 1523423137. The next prime is 1523423171. The reversal of 1523423141 is 1413243251.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1097000641 + 426422500 = 33121^2 + 20650^2 .

It is a cyclic number.

It is not a de Polignac number, because 1523423141 - 2² = 1523423137 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1523423141.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1523423171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 761711570 + 761711571.

It is an arithmetic number, because the mean of its divisors is an integer number (761711571).

Almost surely, 2^1523423141 is an apocalyptic number.

It is an amenable number.

1523423141 is a deficient number, since it is larger than the sum of its proper divisors (1).

1523423141 is an equidigital number, since it uses as much as digits as its factorization.

1523423141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2880, while the sum is 26.

The square root of 1523423141 is about 39031.0535471437. The cubic root of 1523423141 is about 1150.6418952070.

Adding to 1523423141 its reverse (1413243251), we get a palindrome (2936666392).

The spelling of 1523423141 in words is "one billion, five hundred twenty-three million, four hundred twenty-three thousand, one hundred forty-one".