1078551099 has 16 divisors (see below), whose sum is σ = 1598547840. Its totient is φ = 718721640.

The previous prime is 1078551083. The next prime is 1078551107. The reversal of 1078551099 is 9901558701.

1078551099 is a `hidden beast` number, since 1 + 0 + 7 + 8 + 551 + 0 + 99 = 666.

It is not a de Polignac number, because 1078551099 - 2⁴ = 1078551083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1078551899) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66424 + ... + 81050.

It is an arithmetic number, because the mean of its divisors is an integer number (99909240).

Almost surely, 2^1078551099 is an apocalyptic number.

1078551099 is a deficient number, since it is larger than the sum of its proper divisors (519996741).

1078551099 is a wasteful number, since it uses less digits than its factorization.

1078551099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17367 (or 17361 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 45.

The square root of 1078551099 is about 32841.3017251144. The cubic root of 1078551099 is about 1025.5265504798.

The spelling of 1078551099 in words is "one billion, seventy-eight million, five hundred fifty-one thousand, ninety-nine".