245131100155 has 16 divisors (see below), whose sum is σ = 295375601664. Its totient is φ = 195293345760.

The previous prime is 245131100147. The next prime is 245131100189. The reversal of 245131100155 is 551001131542.

It is not a de Polignac number, because 245131100155 - 2³ = 245131100147 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3059334 + ... + 3138436.

It is an arithmetic number, because the mean of its divisors is an integer number (18460975104).

Almost surely, 2^245131100155 is an apocalyptic number.

245131100155 is a deficient number, since it is larger than the sum of its proper divisors (50244501509).

245131100155 is a wasteful number, since it uses less digits than its factorization.

245131100155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81666.

The product of its (nonzero) digits is 3000, while the sum is 28.

Adding to 245131100155 its reverse (551001131542), we get a palindrome (796132231697).

The spelling of 245131100155 in words is "two hundred forty-five billion, one hundred thirty-one million, one hundred thousand, one hundred fifty-five".