30514157 has 4 divisors (see below), whose sum is σ = 30719100. Its totient is φ = 30309216.

The previous prime is 30514129. The next prime is 30514189. The reversal of 30514157 is 75141503.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75141503 = 983 ⋅76441.

It can be written as a sum of positive squares in 2 ways, for example, as 10569001 + 19945156 = 3251^2 + 4466^2 .

It is a cyclic number.

It is not a de Polignac number, because 30514157 - 2⁶ = 30514093 is a prime.

It is a super-2 number, since 2×30514157² = 1862227554841298, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30510157) 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, 102248 + ... + 102545.

It is an arithmetic number, because the mean of its divisors is an integer number (7679775).

Almost surely, 2^30514157 is an apocalyptic number.

It is an amenable number.

30514157 is a deficient number, since it is larger than the sum of its proper divisors (204943).

30514157 is a wasteful number, since it uses less digits than its factorization.

30514157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204942.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 30514157 is about 5523.9620744534. The cubic root of 30514157 is about 312.4883221236.

The spelling of 30514157 in words is "thirty million, five hundred fourteen thousand, one hundred fifty-seven".