245450651 has 4 divisors (see below), whose sum is σ = 247076304. Its totient is φ = 243825000.

The previous prime is 245450627. The next prime is 245450713. The reversal of 245450651 is 156054542.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245450651 is a prime.

It is a super-3 number, since 3×245450651³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245450251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 812600 + ... + 812901.

It is an arithmetic number, because the mean of its divisors is an integer number (61769076).

Almost surely, 2^245450651 is an apocalyptic number.

245450651 is a deficient number, since it is larger than the sum of its proper divisors (1625653).

245450651 is a wasteful number, since it uses less digits than its factorization.

245450651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1625652.

The product of its (nonzero) digits is 24000, while the sum is 32.

The square root of 245450651 is about 15666.8647469747. The cubic root of 245450651 is about 626.1158953118.

The spelling of 245450651 in words is "two hundred forty-five million, four hundred fifty thousand, six hundred fifty-one".