245136654 has 96 divisors (see below), whose sum is σ = 634023936. Its totient is φ = 66977280.

The previous prime is 245136653. The next prime is 245136673. The reversal of 245136654 is 456631542.

245136654 is a `hidden beast` number, since 245 + 1 + 366 + 54 = 666.

It is a super-4 number, since 4×245136654⁴ (a number of 35 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245136653) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 378559 + ... + 379205.

It is an arithmetic number, because the mean of its divisors is an integer number (6604416).

Almost surely, 2^245136654 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245136654, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (317011968).

245136654 is an abundant number, since it is smaller than the sum of its proper divisors (388887282).

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

245136654 is a wasteful number, since it uses less digits than its factorization.

245136654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790 (or 787 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The square root of 245136654 is about 15656.8404858707. The cubic root of 245136654 is about 625.8487915096.

The spelling of 245136654 in words is "two hundred forty-five million, one hundred thirty-six thousand, six hundred fifty-four".