145646746 has 16 divisors (see below), whose sum is σ = 249840576. Its totient is φ = 62379936.

The previous prime is 145646737. The next prime is 145646771. The reversal of 145646746 is 647646541.

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 in 7 ways as a sum of consecutive naturals, for example, 32430 + ... + 36646.

It is an arithmetic number, because the mean of its divisors is an integer number (15615036).

Almost surely, 2^145646746 is an apocalyptic number.

145646746 is a deficient number, since it is larger than the sum of its proper divisors (104193830).

145646746 is a wasteful number, since it uses less digits than its factorization.

145646746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6693.

The product of its digits is 483840, while the sum is 43.

The square root of 145646746 is about 12068.4193662633. The cubic root of 145646746 is about 526.1387177691.

The spelling of 145646746 in words is "one hundred forty-five million, six hundred forty-six thousand, seven hundred forty-six".