730000145 has 16 divisors (see below), whose sum is σ = 1060034688. Its totient is φ = 471125760.

The previous prime is 730000133. The next prime is 730000153. The reversal of 730000145 is 541000037.

It is a happy number.

It is not a de Polignac number, because 730000145 - 2⁴ = 730000129 is a prime.

It is a Duffinian 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, 612851 + ... + 614040.

It is an arithmetic number, because the mean of its divisors is an integer number (66252168).

Almost surely, 2^730000145 is an apocalyptic number.

It is an amenable number.

730000145 is a deficient number, since it is larger than the sum of its proper divisors (330034543).

730000145 is a wasteful number, since it uses less digits than its factorization.

730000145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1226920.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 730000145 is about 27018.5148555578. The cubic root of 730000145 is about 900.4113942256.

The spelling of 730000145 in words is "seven hundred thirty million, one hundred forty-five", and thus it is an aban number.