146997199 has 4 divisors (see below), whose sum is σ = 147220920. Its totient is φ = 146773480.

The previous prime is 146997197. The next prime is 146997211. The reversal of 146997199 is 991799641.

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

It is a cyclic number.

It is not a de Polignac number, because 146997199 - 2¹ = 146997197 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 (146997197) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110872 + ... + 112189.

It is an arithmetic number, because the mean of its divisors is an integer number (36805230).

Almost surely, 2^146997199 is an apocalyptic number.

146997199 is a deficient number, since it is larger than the sum of its proper divisors (223721).

146997199 is an equidigital number, since it uses as much as digits as its factorization.

146997199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223720.

The product of its digits is 1102248, while the sum is 55.

The square root of 146997199 is about 12124.2401411387. The cubic root of 146997199 is about 527.7598566949.

The spelling of 146997199 in words is "one hundred forty-six million, nine hundred ninety-seven thousand, one hundred ninety-nine".