145072846 has 4 divisors (see below), whose sum is σ = 217609272. Its totient is φ = 72536422.

The previous prime is 145072817. The next prime is 145072861. The reversal of 145072846 is 648270541.

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

It is a super-2 number, since 2×145072846² = 42092261293079432, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 36268210 + ... + 36268213.

It is an arithmetic number, because the mean of its divisors is an integer number (54402318).

Almost surely, 2^145072846 is an apocalyptic number.

145072846 is a deficient number, since it is larger than the sum of its proper divisors (72536426).

145072846 is an equidigital number, since it uses as much as digits as its factorization.

145072846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72536425.

The product of its (nonzero) digits is 53760, while the sum is 37.

The square root of 145072846 is about 12044.6189645003. The cubic root of 145072846 is about 525.4467501899.

The spelling of 145072846 in words is "one hundred forty-five million, seventy-two thousand, eight hundred forty-six".