145613930 has 64 divisors (see below), whose sum is σ = 338100480. Its totient is φ = 43814400.

The previous prime is 145613921. The next prime is 145613969. The reversal of 145613930 is 39316541.

145613930 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×145613930² = 42406833220089800, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19070 + ... + 25590.

It is an arithmetic number, because the mean of its divisors is an integer number (5282820).

Almost surely, 2^145613930 is an apocalyptic number.

145613930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145613930 is an abundant number, since it is smaller than the sum of its proper divisors (192486550).

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

145613930 is a wasteful number, since it uses less digits than its factorization.

145613930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6575.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 145613930 is about 12067.0597081476. The cubic root of 145613930 is about 526.0991996301.

The spelling of 145613930 in words is "one hundred forty-five million, six hundred thirteen thousand, nine hundred thirty".