30841457 has 4 divisors (see below), whose sum is σ = 30953076. Its totient is φ = 30729840.

The previous prime is 30841453. The next prime is 30841469. The reversal of 30841457 is 75414803.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75414803 = 59 ⋅1278217.

It can be written as a sum of positive squares in 2 ways, for example, as 2283121 + 28558336 = 1511^2 + 5344^2 .

It is a cyclic number.

It is not a de Polignac number, because 30841457 - 2² = 30841453 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30841453) 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, 55394 + ... + 55947.

It is an arithmetic number, because the mean of its divisors is an integer number (7738269).

Almost surely, 2^30841457 is an apocalyptic number.

It is an amenable number.

30841457 is a deficient number, since it is larger than the sum of its proper divisors (111619).

30841457 is a wasteful number, since it uses less digits than its factorization.

30841457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111618.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 30841457 is about 5553.5085306498. The cubic root of 30841457 is about 313.6016185935.

The spelling of 30841457 in words is "thirty million, eight hundred forty-one thousand, four hundred fifty-seven".