145731196 has 24 divisors (see below), whose sum is σ = 279155744. Its totient is φ = 66156480.

The previous prime is 145731167. The next prime is 145731211. The reversal of 145731196 is 691137541.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19800 + ... + 26143.

Almost surely, 2^145731196 is an apocalyptic number.

It is an amenable number.

145731196 is a deficient number, since it is larger than the sum of its proper divisors (133424548).

145731196 is a wasteful number, since it uses less digits than its factorization.

145731196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46021 (or 46019 counting only the distinct ones).

The product of its digits is 22680, while the sum is 37.

The square root of 145731196 is about 12071.9176604216. The cubic root of 145731196 is about 526.2403880341.

The spelling of 145731196 in words is "one hundred forty-five million, seven hundred thirty-one thousand, one hundred ninety-six".