1215042150349 has 2 divisors, whose sum is σ = 1215042150350. Its totient is φ = 1215042150348.

The previous prime is 1215042150337. The next prime is 1215042150457. The reversal of 1215042150349 is 9430512405121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1139114347849 + 75927802500 = 1067293^2 + 275550^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1215042150349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1215042157349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 607521075174 + 607521075175.

It is an arithmetic number, because the mean of its divisors is an integer number (607521075175).

Almost surely, 2^{1215042150349} is an apocalyptic number.

It is an amenable number.

1215042150349 is a deficient number, since it is larger than the sum of its proper divisors (1).

1215042150349 is an equidigital number, since it uses as much as digits as its factorization.

1215042150349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43200, while the sum is 37.

The spelling of 1215042150349 in words is "one trillion, two hundred fifteen billion, forty-two million, one hundred fifty thousand, three hundred forty-nine".