145722930 has 32 divisors (see below), whose sum is σ = 351407808. Its totient is φ = 38673600.

The previous prime is 145722911. The next prime is 145722943. The reversal of 145722930 is 39227541.

145722930 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 145722891 and 145722900.

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, 5181 + ... + 17840.

It is an arithmetic number, because the mean of its divisors is an integer number (10981494).

Almost surely, 2^145722930 is an apocalyptic number.

145722930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145722930 is an abundant number, since it is smaller than the sum of its proper divisors (205684878).

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

145722930 is a wasteful number, since it uses less digits than its factorization.

145722930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23242.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 145722930 is about 12071.5752907398. The cubic root of 145722930 is about 526.2304382420.

The spelling of 145722930 in words is "one hundred forty-five million, seven hundred twenty-two thousand, nine hundred thirty".