245037813 has 16 divisors (see below), whose sum is σ = 364144320. Its totient is φ = 145656576.

The previous prime is 245037809. The next prime is 245037823. The reversal of 245037813 is 318730542.

It is not a de Polignac number, because 245037813 - 2² = 245037809 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245037803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125470 + ... + 127407.

It is an arithmetic number, because the mean of its divisors is an integer number (22759020).

Almost surely, 2^245037813 is an apocalyptic number.

It is an amenable number.

245037813 is a deficient number, since it is larger than the sum of its proper divisors (119106507).

245037813 is a wasteful number, since it uses less digits than its factorization.

245037813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252916.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 245037813 is about 15653.6836878736. The cubic root of 245037813 is about 625.7646645062.

The spelling of 245037813 in words is "two hundred forty-five million, thirty-seven thousand, eight hundred thirteen".