146739 has 8 divisors (see below), whose sum is σ = 200592. Its totient is φ = 95360.

The previous prime is 146719. The next prime is 146743. The reversal of 146739 is 937641.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 146739 - 2¹³ = 138547 is a prime.

146739 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (146719) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 474 + ... + 719.

It is an arithmetic number, because the mean of its divisors is an integer number (25074).

2¹⁴⁶⁷³⁹ is an apocalyptic number.

146739 is a deficient number, since it is larger than the sum of its proper divisors (53853).

146739 is a wasteful number, since it uses less digits than its factorization.

146739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1237.

The product of its digits is 4536, while the sum is 30.

The square root of 146739 is about 383.0652685901. The cubic root of 146739 is about 52.7450674094.

The spelling of 146739 in words is "one hundred forty-six thousand, seven hundred thirty-nine".