245142733 has 12 divisors (see below), whose sum is σ = 269866044. Its totient is φ = 222516800.

The previous prime is 245142721. The next prime is 245142773. The reversal of 245142733 is 337241542.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 76090729 + 169052004 = 8723^2 + 13002^2 .

It is not a de Polignac number, because 245142733 - 2²⁵ = 211588301 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 245142695 and 245142704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245142773) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 112785 + ... + 114937.

It is an arithmetic number, because the mean of its divisors is an integer number (22488837).

Almost surely, 2^245142733 is an apocalyptic number.

It is an amenable number.

245142733 is a deficient number, since it is larger than the sum of its proper divisors (24723311).

245142733 is a wasteful number, since it uses less digits than its factorization.

245142733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3116 (or 3105 counting only the distinct ones).

The product of its digits is 20160, while the sum is 31.

The square root of 245142733 is about 15657.0346170659. The cubic root of 245142733 is about 625.8539648191.

The spelling of 245142733 in words is "two hundred forty-five million, one hundred forty-two thousand, seven hundred thirty-three".