1288158379 has 2 divisors, whose sum is σ = 1288158380. Its totient is φ = 1288158378.

The previous prime is 1288158373. The next prime is 1288158383. The reversal of 1288158379 is 9738518821.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (9738518821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1288158379 - 2¹⁵ = 1288125611 is a prime.

It is not a weakly prime, because it can be changed into another prime (1288158373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 644079189 + 644079190.

It is an arithmetic number, because the mean of its divisors is an integer number (644079190).

Almost surely, 2^1288158379 is an apocalyptic number.

1288158379 is a deficient number, since it is larger than the sum of its proper divisors (1).

1288158379 is an equidigital number, since it uses as much as digits as its factorization.

1288158379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 967680, while the sum is 52.

The square root of 1288158379 is about 35890.9233511761. The cubic root of 1288158379 is about 1088.0689595830.

The spelling of 1288158379 in words is "one billion, two hundred eighty-eight million, one hundred fifty-eight thousand, three hundred seventy-nine".