245341731 has 4 divisors (see below), whose sum is σ = 327122312. Its totient is φ = 163561152.

The previous prime is 245341687. The next prime is 245341751. The reversal of 245341731 is 137143542.

It is a happy number.

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

It is not a de Polignac number, because 245341731 - 2¹¹ = 245339683 is a prime.

It is a super-2 number, since 2×245341731² = 120385129940152722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245341751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40890286 + ... + 40890291.

It is an arithmetic number, because the mean of its divisors is an integer number (81780578).

Almost surely, 2^245341731 is an apocalyptic number.

245341731 is a deficient number, since it is larger than the sum of its proper divisors (81780581).

245341731 is an equidigital number, since it uses as much as digits as its factorization.

245341731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81780580.

The product of its digits is 10080, while the sum is 30.

The square root of 245341731 is about 15663.3882349893. The cubic root of 245341731 is about 626.0232675500.

The spelling of 245341731 in words is "two hundred forty-five million, three hundred forty-one thousand, seven hundred thirty-one".