146294431 has 4 divisors (see below), whose sum is σ = 146332872. Its totient is φ = 146255992.

The previous prime is 146294429. The next prime is 146294443. The reversal of 146294431 is 134492641.

146294431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 146294431 - 2¹ = 146294429 is a prime.

It is a super-2 number, since 2×146294431² = 42804121083227522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146294461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12796 + ... + 21361.

It is an arithmetic number, because the mean of its divisors is an integer number (36583218).

Almost surely, 2^146294431 is an apocalyptic number.

146294431 is a deficient number, since it is larger than the sum of its proper divisors (38441).

146294431 is an equidigital number, since it uses as much as digits as its factorization.

146294431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38440.

The product of its digits is 20736, while the sum is 34.

The square root of 146294431 is about 12095.2234787126. The cubic root of 146294431 is about 526.9174701863.

The spelling of 146294431 in words is "one hundred forty-six million, two hundred ninety-four thousand, four hundred thirty-one".