2145030454 has 32 divisors (see below), whose sum is σ = 3908761920. Its totient is φ = 861831168.

The previous prime is 2145030449. The next prime is 2145030463. The reversal of 2145030454 is 4540305412.

It is a super-2 number, since 2×2145030454² = 9202311297174892232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 43632 + ... + 78700.

It is an arithmetic number, because the mean of its divisors is an integer number (122148810).

Almost surely, 2^2145030454 is an apocalyptic number.

2145030454 is a deficient number, since it is larger than the sum of its proper divisors (1763731466).

2145030454 is a wasteful number, since it uses less digits than its factorization.

2145030454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35352.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 2145030454 is about 46314.4734829189. The cubic root of 2145030454 is about 1289.6676935845.

Adding to 2145030454 its reverse (4540305412), we get a palindrome (6685335866).

The spelling of 2145030454 in words is "two billion, one hundred forty-five million, thirty thousand, four hundred fifty-four".