146790391 has 8 divisors (see below), whose sum is σ = 161787024. Its totient is φ = 132069120.

The previous prime is 146790383. The next prime is 146790401. The reversal of 146790391 is 193097641.

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 146790391 - 2³ = 146790383 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 (146790311) 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, 67720 + ... + 69853.

It is an arithmetic number, because the mean of its divisors is an integer number (20223378).

Almost surely, 2^146790391 is an apocalyptic number.

146790391 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

146790391 is a deficient number, since it is larger than the sum of its proper divisors (14996633).

146790391 is a wasteful number, since it uses less digits than its factorization.

146790391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137681.

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

The square root of 146790391 is about 12115.7084398726. The cubic root of 146790391 is about 527.5122415793.

The spelling of 146790391 in words is "one hundred forty-six million, seven hundred ninety thousand, three hundred ninety-one".