245540136 has 16 divisors (see below), whose sum is σ = 613850400. Its totient is φ = 81846704.

The previous prime is 245540089. The next prime is 245540143. The reversal of 245540136 is 631045542.

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, 5115396 + ... + 5115443.

It is an arithmetic number, because the mean of its divisors is an integer number (38365650).

Almost surely, 2^245540136 is an apocalyptic number.

It is an amenable number.

245540136 is an abundant number, since it is smaller than the sum of its proper divisors (368310264).

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

245540136 is a wasteful number, since it uses less digits than its factorization.

245540136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10230848 (or 10230844 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 245540136 is about 15669.7203548755. The cubic root of 245540136 is about 626.1919746558.

Adding to 245540136 its reverse (631045542), we get a palindrome (876585678).

The spelling of 245540136 in words is "two hundred forty-five million, five hundred forty thousand, one hundred thirty-six".