1215425303 has 2 divisors, whose sum is σ = 1215425304. Its totient is φ = 1215425302.

The previous prime is 1215425257. The next prime is 1215425347. The reversal of 1215425303 is 3035245121.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (3035245121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1215425303 - 2²⁰ = 1214376727 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1215425903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 607712651 + 607712652.

It is an arithmetic number, because the mean of its divisors is an integer number (607712652).

Almost surely, 2^1215425303 is an apocalyptic number.

1215425303 is a deficient number, since it is larger than the sum of its proper divisors (1).

1215425303 is an equidigital number, since it uses as much as digits as its factorization.

1215425303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 1215425303 is about 34862.9502911042. The cubic root of 1215425303 is about 1067.1924836036.

The spelling of 1215425303 in words is "one billion, two hundred fifteen million, four hundred twenty-five thousand, three hundred three".