146619397 has 4 divisors (see below), whose sum is σ = 146725600. Its totient is φ = 146513196.

The previous prime is 146619353. The next prime is 146619433. The reversal of 146619397 is 793916641.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 146619397 - 2⁷ = 146619269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146619097) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 51003 + ... + 53800.

It is an arithmetic number, because the mean of its divisors is an integer number (36681400).

Almost surely, 2^146619397 is an apocalyptic number.

It is an amenable number.

146619397 is a deficient number, since it is larger than the sum of its proper divisors (106203).

146619397 is a wasteful number, since it uses less digits than its factorization.

146619397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106202.

The product of its digits is 244944, while the sum is 46.

The square root of 146619397 is about 12108.6496769871. The cubic root of 146619397 is about 527.3073315370.

The spelling of 146619397 in words is "one hundred forty-six million, six hundred nineteen thousand, three hundred ninety-seven".