1249214377 has 2 divisors, whose sum is σ = 1249214378. Its totient is φ = 1249214376.

The previous prime is 1249214357. The next prime is 1249214419. The reversal of 1249214377 is 7734129421.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 750540816 + 498673561 = 27396^2 + 22331^2 .

It is a cyclic number.

It is not a de Polignac number, because 1249214377 - 2¹¹ = 1249212329 is a prime.

It is not a weakly prime, because it can be changed into another prime (1249214357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 624607188 + 624607189.

It is an arithmetic number, because the mean of its divisors is an integer number (624607189).

Almost surely, 2^1249214377 is an apocalyptic number.

It is an amenable number.

1249214377 is a deficient number, since it is larger than the sum of its proper divisors (1).

1249214377 is an equidigital number, since it uses as much as digits as its factorization.

1249214377 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 84672, while the sum is 40.

The square root of 1249214377 is about 35344.2269260483. The cubic root of 1249214377 is about 1076.9916212611.

The spelling of 1249214377 in words is "one billion, two hundred forty-nine million, two hundred fourteen thousand, three hundred seventy-seven".