1523712401 has 2 divisors, whose sum is σ = 1523712402. Its totient is φ = 1523712400.

The previous prime is 1523712383. The next prime is 1523712433. The reversal of 1523712401 is 1042173251.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1389500176 + 134212225 = 37276^2 + 11585^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1523712401 is a prime.

It is a super-2 number, since 2×1523712401² = 4643398961922369602, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1523732401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 761856200 + 761856201.

It is an arithmetic number, because the mean of its divisors is an integer number (761856201).

Almost surely, 2^1523712401 is an apocalyptic number.

It is an amenable number.

1523712401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1523712401 is an equidigital number, since it uses as much as digits as its factorization.

1523712401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 1523712401 is about 39034.7588823090. The cubic root of 1523712401 is about 1150.7147166493.

Adding to 1523712401 its reverse (1042173251), we get a palindrome (2565885652).

The spelling of 1523712401 in words is "one billion, five hundred twenty-three million, seven hundred twelve thousand, four hundred one".