30155045 has 8 divisors (see below), whose sum is σ = 36779640. Its totient is φ = 23728320.

The previous prime is 30155017. The next prime is 30155053. The reversal of 30155045 is 54055103.

It can be written as a sum of positive squares in 4 ways, for example, as 2927521 + 27227524 = 1711^2 + 5218^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30155045 - 2⁶ = 30154981 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30155045.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49130 + ... + 49739.

It is an arithmetic number, because the mean of its divisors is an integer number (4597455).

Almost surely, 2^30155045 is an apocalyptic number.

It is an amenable number.

30155045 is a deficient number, since it is larger than the sum of its proper divisors (6624595).

30155045 is an equidigital number, since it uses as much as digits as its factorization.

30155045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98935.

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 30155045 is about 5491.3609424258. The cubic root of 30155045 is about 311.2576209270.

The spelling of 30155045 in words is "thirty million, one hundred fifty-five thousand, forty-five".