15145252541 has 2 divisors, whose sum is σ = 15145252542. Its totient is φ = 15145252540.

The previous prime is 15145252537. The next prime is 15145252559. The reversal of 15145252541 is 14525254151.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14551355641 + 593896900 = 120629^2 + 24370^2 .

It is an emirp because it is prime and its reverse (14525254151) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15145252541 - 2² = 15145252537 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15145252501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7572626270 + 7572626271.

It is an arithmetic number, because the mean of its divisors is an integer number (7572626271).

Almost surely, 2^15145252541 is an apocalyptic number.

It is an amenable number.

15145252541 is a deficient number, since it is larger than the sum of its proper divisors (1).

15145252541 is an equidigital number, since it uses as much as digits as its factorization.

15145252541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40000, while the sum is 35.

The spelling of 15145252541 in words is "fifteen billion, one hundred forty-five million, two hundred fifty-two thousand, five hundred forty-one".