1228969715 has 8 divisors (see below), whose sum is σ = 1475374848. Its totient is φ = 982768320.

The previous prime is 1228969699. The next prime is 1228969739. The reversal of 1228969715 is 5179698221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1228969715 - 2⁴ = 1228969699 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37331 + ... + 62060.

It is an arithmetic number, because the mean of its divisors is an integer number (184421856).

Almost surely, 2^1228969715 is an apocalyptic number.

1228969715 is a deficient number, since it is larger than the sum of its proper divisors (246405133).

1228969715 is an equidigital number, since it uses as much as digits as its factorization.

1228969715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101869.

The product of its digits is 544320, while the sum is 50.

The square root of 1228969715 is about 35056.6643450286. The cubic root of 1228969715 is about 1071.1420289783.

The spelling of 1228969715 in words is "one billion, two hundred twenty-eight million, nine hundred sixty-nine thousand, seven hundred fifteen".