245490715 has 8 divisors (see below), whose sum is σ = 297449568. Its totient is φ = 194485440.

The previous prime is 245490667. The next prime is 245490719. The reversal of 245490715 is 517094542.

245490715 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 245490715 - 2⁷ = 245490587 is a prime.

It is a super-2 number, since 2×245490715² = 120531382302422450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245490719) 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, 237826 + ... + 238855.

It is an arithmetic number, because the mean of its divisors is an integer number (37181196).

Almost surely, 2^245490715 is an apocalyptic number.

245490715 is a deficient number, since it is larger than the sum of its proper divisors (51958853).

245490715 is a wasteful number, since it uses less digits than its factorization.

245490715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476789.

The product of its (nonzero) digits is 50400, while the sum is 37.

The square root of 245490715 is about 15668.1433169345. The cubic root of 245490715 is about 626.1499596508.

The spelling of 245490715 in words is "two hundred forty-five million, four hundred ninety thousand, seven hundred fifteen".