30148501 has 2 divisors, whose sum is σ = 30148502. Its totient is φ = 30148500.

The previous prime is 30148499. The next prime is 30148507. The reversal of 30148501 is 10584103.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28366276 + 1782225 = 5326^2 + 1335^2 .

It is an emirp because it is prime and its reverse (10584103) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30148501 - 2¹ = 30148499 is a prime.

It is a super-2 number, since 2×30148501² = 1817864225094002, which contains 22 as substring.

Together with 30148499, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30148507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15074250 + 15074251.

It is an arithmetic number, because the mean of its divisors is an integer number (15074251).

Almost surely, 2^30148501 is an apocalyptic number.

It is an amenable number.

30148501 is a deficient number, since it is larger than the sum of its proper divisors (1).

30148501 is an equidigital number, since it uses as much as digits as its factorization.

30148501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 30148501 is about 5490.7650650888. The cubic root of 30148501 is about 311.2351037746.

The spelling of 30148501 in words is "thirty million, one hundred forty-eight thousand, five hundred one".