146909137 has 4 divisors (see below), whose sum is σ = 147045376. Its totient is φ = 146772900.

The previous prime is 146909123. The next prime is 146909149. The reversal of 146909137 is 731909641.

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 146909137 - 2¹⁵ = 146876369 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 146909137.

It is not an unprimeable number, because it can be changed into a prime (146909177) 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, 66489 + ... + 68662.

It is an arithmetic number, because the mean of its divisors is an integer number (36761344).

Almost surely, 2^146909137 is an apocalyptic number.

It is an amenable number.

146909137 is a deficient number, since it is larger than the sum of its proper divisors (136239).

146909137 is a wasteful number, since it uses less digits than its factorization.

146909137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136238.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 146909137 is about 12120.6079467987. The cubic root of 146909137 is about 527.6544468125.

The spelling of 146909137 in words is "one hundred forty-six million, nine hundred nine thousand, one hundred thirty-seven".