15152143421 has 2 divisors, whose sum is σ = 15152143422. Its totient is φ = 15152143420.

The previous prime is 15152143399. The next prime is 15152143439. The reversal of 15152143421 is 12434125151.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8625765625 + 6526377796 = 92875^2 + 80786^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15152143421 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15152143121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7576071710 + 7576071711.

It is an arithmetic number, because the mean of its divisors is an integer number (7576071711).

Almost surely, 2^15152143421 is an apocalyptic number.

It is an amenable number.

15152143421 is a deficient number, since it is larger than the sum of its proper divisors (1).

15152143421 is an equidigital number, since it uses as much as digits as its factorization.

15152143421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4800, while the sum is 29.

Adding to 15152143421 its reverse (12434125151), we get a palindrome (27586268572).

The spelling of 15152143421 in words is "fifteen billion, one hundred fifty-two million, one hundred forty-three thousand, four hundred twenty-one".