1206245000 has 40 divisors (see below), whose sum is σ = 2826243750. Its totient is φ = 482496000.

The previous prime is 1206244933. The next prime is 1206245009. The reversal of 1206245000 is 5426021.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 19166884 + 1187078116 = 4378^2 + 34454^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (1206245009) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 115625 + ... + 125624.

Almost surely, 2^1206245000 is an apocalyptic number.

1206245000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1206245000 is an abundant number, since it is smaller than the sum of its proper divisors (1619998750).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1206245000 is an equidigital number, since it uses as much as digits as its factorization.

1206245000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241275 (or 241256 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 1206245000 is about 34731.0379919748. The cubic root of 1206245000 is about 1064.4987980136.

The spelling of 1206245000 in words is "one billion, two hundred six million, two hundred forty-five thousand".