1230140194 has 4 divisors (see below), whose sum is σ = 1845210294. Its totient is φ = 615070096.

The previous prime is 1230140141. The next prime is 1230140239. The reversal of 1230140194 is 4910410321.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1123121169 + 107019025 = 33513^2 + 10345^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 307535047 + ... + 307535050.

Almost surely, 2^1230140194 is an apocalyptic number.

1230140194 is a deficient number, since it is larger than the sum of its proper divisors (615070100).

1230140194 is an equidigital number, since it uses as much as digits as its factorization.

1230140194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615070099.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 1230140194 is about 35073.3544731610. The cubic root of 1230140194 is about 1071.4819753631.

The spelling of 1230140194 in words is "one billion, two hundred thirty million, one hundred forty thousand, one hundred ninety-four".