146999897 has 4 divisors (see below), whose sum is σ = 160363536. Its totient is φ = 133636260.

The previous prime is 146999893. The next prime is 146999939. The reversal of 146999897 is 798999641.

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 146999897 - 2² = 146999893 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146999893) 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 in 3 ways as a sum of consecutive naturals, for example, 6681803 + ... + 6681824.

It is an arithmetic number, because the mean of its divisors is an integer number (40090884).

Almost surely, 2^146999897 is an apocalyptic number.

It is an amenable number.

146999897 is a deficient number, since it is larger than the sum of its proper divisors (13363639).

146999897 is a wasteful number, since it uses less digits than its factorization.

146999897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13363638.

The product of its digits is 8817984, while the sum is 62.

The square root of 146999897 is about 12124.3514053330. The cubic root of 146999897 is about 527.7630855260.

The spelling of 146999897 in words is "one hundred forty-six million, nine hundred ninety-nine thousand, eight hundred ninety-seven".