146198786 has 4 divisors (see below), whose sum is σ = 219298182. Its totient is φ = 73099392.

The previous prime is 146198783. The next prime is 146198797. The reversal of 146198786 is 687891641.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 687891641 = 3187 ⋅215843.

It can be written as a sum of positive squares in only one way, i.e., 81090025 + 65108761 = 9005^2 + 8069^2 .

It is not an unprimeable number, because it can be changed into a prime (146198783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36549695 + ... + 36549698.

Almost surely, 2^146198786 is an apocalyptic number.

146198786 is a deficient number, since it is larger than the sum of its proper divisors (73099396).

146198786 is an equidigital number, since it uses as much as digits as its factorization.

146198786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73099395.

The product of its digits is 580608, while the sum is 50.

The square root of 146198786 is about 12091.2689987445. The cubic root of 146198786 is about 526.8026150319.

The spelling of 146198786 in words is "one hundred forty-six million, one hundred ninety-eight thousand, seven hundred eighty-six".