245125990 has 32 divisors (see below), whose sum is σ = 460028160. Its totient is φ = 93936000.

The previous prime is 245125963. The next prime is 245126023. The reversal of 245125990 is 99521542.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27396 + ... + 35224.

It is an arithmetic number, because the mean of its divisors is an integer number (14375880).

Almost surely, 2^245125990 is an apocalyptic number.

245125990 is a deficient number, since it is larger than the sum of its proper divisors (214902170).

245125990 is a wasteful number, since it uses less digits than its factorization.

245125990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7968.

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 245125990 is about 15656.4999281449. The cubic root of 245125990 is about 625.8397160977.

It can be divided in two parts, 2451 and 25990, that added together give a triangular number (28441 = T₂₃₈).

The spelling of 245125990 in words is "two hundred forty-five million, one hundred twenty-five thousand, nine hundred ninety".