245772031 has 4 divisors (see below), whose sum is σ = 245871000. Its totient is φ = 245673064.

The previous prime is 245771983. The next prime is 245772053. The reversal of 245772031 is 130277542.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130277542 = 2 ⋅65138771.

It is a cyclic number.

It is not a de Polignac number, because 245772031 - 2¹⁷ = 245640959 is a prime.

It is a super-2 number, since 2×245772031² = 120807782443729922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 245771984 and 245772002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245775031) 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 3 ways as a sum of consecutive naturals, for example, 45661 + ... + 50758.

It is an arithmetic number, because the mean of its divisors is an integer number (61467750).

Almost surely, 2^245772031 is an apocalyptic number.

245772031 is a deficient number, since it is larger than the sum of its proper divisors (98969).

245772031 is an equidigital number, since it uses as much as digits as its factorization.

245772031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98968.

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 245772031 is about 15677.1180706149. The cubic root of 245772031 is about 626.3890437250.

The spelling of 245772031 in words is "two hundred forty-five million, seven hundred seventy-two thousand, thirty-one".