245522154 has 8 divisors (see below), whose sum is σ = 491044320. Its totient is φ = 81840716.

The previous prime is 245522153. The next prime is 245522197. The reversal of 245522154 is 451225542.

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

245522154 is an admirable number.

It is a super-2 number, since 2×245522154² = 120562256209599432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (245522153) 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, 20460174 + ... + 20460185.

It is an arithmetic number, because the mean of its divisors is an integer number (61380540).

Almost surely, 2^245522154 is an apocalyptic number.

245522154 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.

245522154 is a wasteful number, since it uses less digits than its factorization.

245522154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40920364.

The product of its digits is 16000, while the sum is 30.

The square root of 245522154 is about 15669.1465625924. The cubic root of 245522154 is about 626.1766880049.

Adding to 245522154 its reverse (451225542), we get a palindrome (696747696).

The spelling of 245522154 in words is "two hundred forty-five million, five hundred twenty-two thousand, one hundred fifty-four".