146790431 has 8 divisors (see below), whose sum is σ = 152964720. Its totient is φ = 140690368.

The previous prime is 146790421. The next prime is 146790451. The reversal of 146790431 is 134097641.

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

It is a de Polignac number, because none of the positive numbers 2^k-146790431 is a prime.

It is a super-2 number, since 2×146790431² = 43094861266331522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 146790391 and 146790400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146790401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14501 + ... + 22446.

It is an arithmetic number, because the mean of its divisors is an integer number (19120590).

Almost surely, 2^146790431 is an apocalyptic number.

146790431 is a deficient number, since it is larger than the sum of its proper divisors (6174289).

146790431 is a wasteful number, since it uses less digits than its factorization.

146790431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37113.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 146790431 is about 12115.7100906220. The cubic root of 146790431 is about 527.5122894945.

The spelling of 146790431 in words is "one hundred forty-six million, seven hundred ninety thousand, four hundred thirty-one".