146839451 has 4 divisors (see below), whose sum is σ = 160188504. Its totient is φ = 133490400.

The previous prime is 146839447. The next prime is 146839487. The reversal of 146839451 is 154938641.

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 146839451 - 2² = 146839447 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 146839399 and 146839408.

It is not an unprimeable number, because it can be changed into a prime (146839951) 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, 6674510 + ... + 6674531.

It is an arithmetic number, because the mean of its divisors is an integer number (40047126).

Almost surely, 2^146839451 is an apocalyptic number.

146839451 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

146839451 is a deficient number, since it is larger than the sum of its proper divisors (13349053).

146839451 is a wasteful number, since it uses less digits than its factorization.

146839451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13349052.

The product of its digits is 103680, while the sum is 41.

The square root of 146839451 is about 12117.7329150299. The cubic root of 146839451 is about 527.5710030731.

The spelling of 146839451 in words is "one hundred forty-six million, eight hundred thirty-nine thousand, four hundred fifty-one".