145851449 has 8 divisors (see below), whose sum is σ = 155544480. Its totient is φ = 136282176.

The previous prime is 145851437. The next prime is 145851457. The reversal of 145851449 is 944158541.

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 145851449 - 2¹² = 145847353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145851149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28499 + ... + 33224.

It is an arithmetic number, because the mean of its divisors is an integer number (19443060).

Almost surely, 2^145851449 is an apocalyptic number.

It is an amenable number.

145851449 is a deficient number, since it is larger than the sum of its proper divisors (9693031).

145851449 is a wasteful number, since it uses less digits than its factorization.

145851449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61879.

The product of its digits is 115200, while the sum is 41.

The square root of 145851449 is about 12076.8973250583. The cubic root of 145851449 is about 526.3850941528.

The spelling of 145851449 in words is "one hundred forty-five million, eight hundred fifty-one thousand, four hundred forty-nine".