145681430 has 32 divisors (see below), whose sum is σ = 266872320. Its totient is φ = 57249280.

The previous prime is 145681429. The next prime is 145681441. The reversal of 145681430 is 34186541.

145681430 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 169562 + ... + 170418.

It is an arithmetic number, because the mean of its divisors is an integer number (8339760).

Almost surely, 2^145681430 is an apocalyptic number.

145681430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145681430 is a deficient number, since it is larger than the sum of its proper divisors (121190890).

145681430 is a wasteful number, since it uses less digits than its factorization.

145681430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1144.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 145681430 is about 12069.8562543222. The cubic root of 145681430 is about 526.1804789651.

The spelling of 145681430 in words is "one hundred forty-five million, six hundred eighty-one thousand, four hundred thirty".