15730901 has 2 divisors, whose sum is σ = 15730902. Its totient is φ = 15730900.

The previous prime is 15730861. The next prime is 15730903. The reversal of 15730901 is 10903751.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8708401 + 7022500 = 2951^2 + 2650^2 .

It is an emirp because it is prime and its reverse (10903751) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15730901 - 2¹⁰ = 15729877 is a prime.

It is a super-2 number, since 2×15730901² = 494922492543602, which contains 22 as substring.

Together with 15730903, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15730903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7865450 + 7865451.

It is an arithmetic number, because the mean of its divisors is an integer number (7865451).

Almost surely, 2^15730901 is an apocalyptic number.

It is an amenable number.

15730901 is a deficient number, since it is larger than the sum of its proper divisors (1).

15730901 is an equidigital number, since it uses as much as digits as its factorization.

15730901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 945, while the sum is 26.

The square root of 15730901 is about 3966.2199888559. The cubic root of 15730901 is about 250.5635340962.

The spelling of 15730901 in words is "fifteen million, seven hundred thirty thousand, nine hundred one".