30497461 has 4 divisors (see below), whose sum is σ = 30782592. Its totient is φ = 30212332.

The previous prime is 30497447. The next prime is 30497497. The reversal of 30497461 is 16479403.

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: 16479403 = 19 ⋅867337.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30497461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30497431) 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, 142405 + ... + 142618.

It is an arithmetic number, because the mean of its divisors is an integer number (7695648).

Almost surely, 2^30497461 is an apocalyptic number.

It is an amenable number.

30497461 is a deficient number, since it is larger than the sum of its proper divisors (285131).

30497461 is a wasteful number, since it uses less digits than its factorization.

30497461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285130.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 30497461 is about 5522.4506335503. The cubic root of 30497461 is about 312.4313184529.

The spelling of 30497461 in words is "thirty million, four hundred ninety-seven thousand, four hundred sixty-one".