245189031 has 8 divisors (see below), whose sum is σ = 327013104. Its totient is φ = 163412160.

The previous prime is 245189027. The next prime is 245189033. The reversal of 245189031 is 130981542.

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

It is not a de Polignac number, because 245189031 - 2² = 245189027 is a prime.

It is a super-2 number, since 2×245189031² = 120235321845437922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 245188983 and 245189001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245189033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2961 + ... + 22341.

It is an arithmetic number, because the mean of its divisors is an integer number (40876638).

Almost surely, 2^245189031 is an apocalyptic number.

245189031 is a deficient number, since it is larger than the sum of its proper divisors (81824073).

245189031 is a wasteful number, since it uses less digits than its factorization.

245189031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23601.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 245189031 is about 15658.5130520110. The cubic root of 245189031 is about 625.8933622245.

The spelling of 245189031 in words is "two hundred forty-five million, one hundred eighty-nine thousand, thirty-one".