730126 has 4 divisors (see below), whose sum is σ = 1095192. Its totient is φ = 365062.

The previous prime is 730111. The next prime is 730139. The reversal of 730126 is 621037.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 621037 = 71 ⋅8747.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 182530 + ... + 182533.

It is an arithmetic number, because the mean of its divisors is an integer number (273798).

2⁷³⁰¹²⁶ is an apocalyptic number.

730126 is a deficient number, since it is larger than the sum of its proper divisors (365066).

730126 is a wasteful number, since it uses less digits than its factorization.

730126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365065.

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 730126 is about 854.4741072730. The cubic root of 730126 is about 90.0463136117.

The spelling of 730126 in words is "seven hundred thirty thousand, one hundred twenty-six".