30145361 has 4 divisors (see below), whose sum is σ = 31117824. Its totient is φ = 29172900.

The previous prime is 30145333. The next prime is 30145439. The reversal of 30145361 is 16354103.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 16354103 = 97 ⋅168599.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30145361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30145321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 486185 + ... + 486246.

It is an arithmetic number, because the mean of its divisors is an integer number (7779456).

Almost surely, 2^30145361 is an apocalyptic number.

30145361 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

30145361 is a deficient number, since it is larger than the sum of its proper divisors (972463).

30145361 is an equidigital number, since it uses as much as digits as its factorization.

30145361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 972462.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 30145361 is about 5490.4791229910. The cubic root of 30145361 is about 311.2242982385.

Adding to 30145361 its reverse (16354103), we get a palindrome (46499464).

The spelling of 30145361 in words is "thirty million, one hundred forty-five thousand, three hundred sixty-one".