2145022351 has 8 divisors (see below), whose sum is σ = 2154902544. Its totient is φ = 2135158080.

The previous prime is 2145022333. The next prime is 2145022403. The reversal of 2145022351 is 1532205412.

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

It is a cyclic number.

It is not a de Polignac number, because 2145022351 - 2¹⁹ = 2144498063 is a prime.

It is a super-2 number, since 2×2145022351² = 9202241772579134402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145022751) 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, 327216 + ... + 333706.

It is an arithmetic number, because the mean of its divisors is an integer number (269362818).

Almost surely, 2^2145022351 is an apocalyptic number.

2145022351 is a deficient number, since it is larger than the sum of its proper divisors (9880193).

2145022351 is a wasteful number, since it uses less digits than its factorization.

2145022351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7961.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 2145022351 is about 46314.3860047826. The cubic root of 2145022351 is about 1289.6660696464. Note that the first 3 decimals are identical.

Adding to 2145022351 its reverse (1532205412), we get a palindrome (3677227763).

The spelling of 2145022351 in words is "two billion, one hundred forty-five million, twenty-two thousand, three hundred fifty-one".