145620086404 has 45 divisors (see below), whose sum is σ = 276315413577. Its totient is φ = 67149740736.

The previous prime is 145620086377. The next prime is 145620086431. The reversal of 145620086404 is 404680026541.

The square root of 145620086404 is 381602.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (145620086377) and next prime (145620086431).

It can be written as a sum of positive squares in 7 ways, for example, as 113907600004 + 31712486400 = 337502^2 + 178080^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 128980912 + ... + 128982040.

Almost surely, 2^145620086404 is an apocalyptic number.

145620086404 is the 381602-nd square number.

It is an amenable number.

145620086404 is a deficient number, since it is larger than the sum of its proper divisors (130695327173).

145620086404 is an frugal number, since it uses more digits than its factorization.

145620086404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2314 (or 1144 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 40.

The spelling of 145620086404 in words is "one hundred forty-five billion, six hundred twenty million, eighty-six thousand, four hundred four".