245421534 has 8 divisors (see below), whose sum is σ = 490843080. Its totient is φ = 81807176.

The previous prime is 245421521. The next prime is 245421551. The reversal of 245421534 is 435124542.

It is a sphenic number, since it is the product of 3 distinct primes.

245421534 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20451789 + ... + 20451800.

It is an arithmetic number, because the mean of its divisors is an integer number (61355385).

Almost surely, 2^245421534 is an apocalyptic number.

245421534 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

245421534 is a wasteful number, since it uses less digits than its factorization.

245421534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40903594.

The product of its digits is 19200, while the sum is 30.

The square root of 245421534 is about 15665.9354652060. The cubic root of 245421534 is about 626.0911363126.

The spelling of 245421534 in words is "two hundred forty-five million, four hundred twenty-one thousand, five hundred thirty-four".