245392454 has 4 divisors (see below), whose sum is σ = 368088684. Its totient is φ = 122696226.

The previous prime is 245392439. The next prime is 245392517. The reversal of 245392454 is 454293542.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 454293542 = 2 ⋅227146771.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61348112 + ... + 61348115.

It is an arithmetic number, because the mean of its divisors is an integer number (92022171).

Almost surely, 2^245392454 is an apocalyptic number.

245392454 is a deficient number, since it is larger than the sum of its proper divisors (122696230).

245392454 is a wasteful number, since it uses less digits than its factorization.

245392454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122696229.

The product of its digits is 172800, while the sum is 38.

The square root of 245392454 is about 15665.0073092865. The cubic root of 245392454 is about 626.0664068208.

The spelling of 245392454 in words is "two hundred forty-five million, three hundred ninety-two thousand, four hundred fifty-four".