245355431 has 8 divisors (see below), whose sum is σ = 248439744. Its totient is φ = 242287360.

The previous prime is 245355427. The next prime is 245355437. The reversal of 245355431 is 134553542.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 245355431 - 2² = 245355427 is a prime.

It is a super-2 number, since 2×245355431² = 120398575042391522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245355437) 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 7 ways as a sum of consecutive naturals, for example, 27890 + ... + 35616.

It is an arithmetic number, because the mean of its divisors is an integer number (31054968).

Almost surely, 2^245355431 is an apocalyptic number.

245355431 is a deficient number, since it is larger than the sum of its proper divisors (3084313).

245355431 is a wasteful number, since it uses less digits than its factorization.

245355431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8121.

The product of its digits is 36000, while the sum is 32.

The square root of 245355431 is about 15663.8255544423. The cubic root of 245355431 is about 626.0349198130.

The spelling of 245355431 in words is "two hundred forty-five million, three hundred fifty-five thousand, four hundred thirty-one".