145664826 has 16 divisors (see below), whose sum is σ = 294215328. Its totient is φ = 48074000.

The previous prime is 145664801. The next prime is 145664833. The reversal of 145664826 is 628466541.

It is a super-2 number, since 2×145664826² = 42436483067220552, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119580 + ... + 120791.

It is an arithmetic number, because the mean of its divisors is an integer number (18388458).

Almost surely, 2^145664826 is an apocalyptic number.

145664826 is an abundant number, since it is smaller than the sum of its proper divisors (148550502).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145664826 is a wasteful number, since it uses less digits than its factorization.

145664826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240477.

The product of its digits is 276480, while the sum is 42.

The square root of 145664826 is about 12069.1684054868. The cubic root of 145664826 is about 526.1604877816.

The spelling of 145664826 in words is "one hundred forty-five million, six hundred sixty-four thousand, eight hundred twenty-six".