245531405242 has 8 divisors (see below), whose sum is σ = 368324010432. Its totient is φ = 122756735100.

The previous prime is 245531405233. The next prime is 245531405261. The reversal of 245531405242 is 242504135542.

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

It is a super-2 number, since 2×245531405242² (a number of 24 digits) contains 22 as substring.

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, 4449484 + ... + 4504327.

It is an arithmetic number, because the mean of its divisors is an integer number (46040501304).

Almost surely, 2^245531405242 is an apocalyptic number.

245531405242 is a deficient number, since it is larger than the sum of its proper divisors (122792605190).

245531405242 is a wasteful number, since it uses less digits than its factorization.

245531405242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8967524.

The product of its (nonzero) digits is 192000, while the sum is 37.

The spelling of 245531405242 in words is "two hundred forty-five billion, five hundred thirty-one million, four hundred five thousand, two hundred forty-two".