245042123154 has 16 divisors (see below), whose sum is σ = 490954740192. Its totient is φ = 81535625408.

The previous prime is 245042123153. The next prime is 245042123159. The reversal of 245042123154 is 451321240542.

It is not an unprimeable number, because it can be changed into a prime (245042123153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36266919 + ... + 36273674.

It is an arithmetic number, because the mean of its divisors is an integer number (30684671262).

Almost surely, 2^245042123154 is an apocalyptic number.

245042123154 is an abundant number, since it is smaller than the sum of its proper divisors (245912617038).

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

245042123154 is a wasteful number, since it uses less digits than its factorization.

245042123154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72541161.

The product of its (nonzero) digits is 38400, while the sum is 33.

Adding to 245042123154 its reverse (451321240542), we get a palindrome (696363363696).

The spelling of 245042123154 in words is "two hundred forty-five billion, forty-two million, one hundred twenty-three thousand, one hundred fifty-four".