258949245 has 16 divisors (see below), whose sum is σ = 415789632. Its totient is φ = 137616000.

The previous prime is 258949237. The next prime is 258949247. The reversal of 258949245 is 542949852.

It is not a de Polignac number, because 258949245 - 2³ = 258949237 is a prime.

It is a super-2 number, since 2×258949245² = 134109422972140050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 258949194 and 258949203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258949247) 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 15 ways as a sum of consecutive naturals, for example, 26256 + ... + 34745.

It is an arithmetic number, because the mean of its divisors is an integer number (25986852).

Almost surely, 2^258949245 is an apocalyptic number.

It is an amenable number.

258949245 is a deficient number, since it is larger than the sum of its proper divisors (156840387).

258949245 is a wasteful number, since it uses less digits than its factorization.

258949245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61292.

The product of its digits is 1036800, while the sum is 48.

The square root of 258949245 is about 16091.8999810464. The cubic root of 258949245 is about 637.3894679570.

The spelling of 258949245 in words is "two hundred fifty-eight million, nine hundred forty-nine thousand, two hundred forty-five".