245440154 has 4 divisors (see below), whose sum is σ = 368160234. Its totient is φ = 122720076.

The previous prime is 245440127. The next prime is 245440171. The reversal of 245440154 is 451044542.

245440154 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 173580625 + 71859529 = 13175^2 + 8477^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61360037 + ... + 61360040.

Almost surely, 2^245440154 is an apocalyptic number.

245440154 is a deficient number, since it is larger than the sum of its proper divisors (122720080).

245440154 is a wasteful number, since it uses less digits than its factorization.

245440154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122720079.

The product of its (nonzero) digits is 12800, while the sum is 29.

The square root of 245440154 is about 15666.5297369903. The cubic root of 245440154 is about 626.1069696449.

Adding to 245440154 its reverse (451044542), we get a palindrome (696484696).

The spelling of 245440154 in words is "two hundred forty-five million, four hundred forty thousand, one hundred fifty-four".