146399693 has 16 divisors (see below), whose sum is σ = 169128000. Its totient is φ = 125326080.

The previous prime is 146399683. The next prime is 146399779. The reversal of 146399693 is 396993641.

It is not a de Polignac number, because 146399693 - 2⁴ = 146399677 is a prime.

It is a super-2 number, since 2×146399693² = 42865740220988498, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146399653) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34133 + ... + 38181.

It is an arithmetic number, because the mean of its divisors is an integer number (10570500).

Almost surely, 2^146399693 is an apocalyptic number.

It is an amenable number.

146399693 is a deficient number, since it is larger than the sum of its proper divisors (22728307).

146399693 is a wasteful number, since it uses less digits than its factorization.

146399693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4252.

The product of its digits is 944784, while the sum is 50.

The square root of 146399693 is about 12099.5740834130. The cubic root of 146399693 is about 527.0438160517.

The spelling of 146399693 in words is "one hundred forty-six million, three hundred ninety-nine thousand, six hundred ninety-three".