145730704 has 60 divisors (see below), whose sum is σ = 330895488. Its totient is φ = 61992000.

The previous prime is 145730701. The next prime is 145730707. The reversal of 145730704 is 407037541.

It is an interprime number because it is at equal distance from previous prime (145730701) and next prime (145730707).

It is not an unprimeable number, because it can be changed into a prime (145730701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 117769 + ... + 118999.

Almost surely, 2^145730704 is an apocalyptic number.

145730704 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145730704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165447744).

145730704 is an abundant number, since it is smaller than the sum of its proper divisors (185164784).

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

145730704 is a wasteful number, since it uses less digits than its factorization.

145730704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1404 (or 1391 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 145730704 is about 12071.8972825319. The cubic root of 145730704 is about 526.2397958238.

The spelling of 145730704 in words is "one hundred forty-five million, seven hundred thirty thousand, seven hundred four".