1198561610 has 64 divisors (see below), whose sum is σ = 2371057920. Its totient is φ = 434603520.

The previous prime is 1198561603. The next prime is 1198561613. The reversal of 1198561610 is 161658911.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (1198561613) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 411419 + ... + 414321.

It is an arithmetic number, because the mean of its divisors is an integer number (37047780).

Almost surely, 2^1198561610 is an apocalyptic number.

1198561610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1198561610 is a deficient number, since it is larger than the sum of its proper divisors (1172496310).

1198561610 is a wasteful number, since it uses less digits than its factorization.

1198561610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3023.

The product of its (nonzero) digits is 12960, while the sum is 38.

The square root of 1198561610 is about 34620.2485548559. The cubic root of 1198561610 is about 1062.2338112410.

The spelling of 1198561610 in words is "one billion, one hundred ninety-eight million, five hundred sixty-one thousand, six hundred ten".