2145351 has 8 divisors (see below), whose sum is σ = 3080560. Its totient is φ = 1320192.

The previous prime is 2145343. The next prime is 2145359. The reversal of 2145351 is 1535412.

2145351 = T₁₃₀ + T₁₃₁ + ... + T₂₄₆.

It is an interprime number because it is at equal distance from previous prime (2145343) and next prime (2145359).

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

It is not a de Polignac number, because 2145351 - 2³ = 2145343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145359) 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, 27466 + ... + 27543.

It is an arithmetic number, because the mean of its divisors is an integer number (385070).

2^2145351 is an apocalyptic number.

2145351 is a deficient number, since it is larger than the sum of its proper divisors (935209).

2145351 is a wasteful number, since it uses less digits than its factorization.

2145351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55025.

The product of its digits is 600, while the sum is 21.

The square root of 2145351 is about 1464.7016761102. The cubic root of 2145351 is about 128.9731931558.

It can be divided in two parts, 214 and 5351, that added together give a triangular number (5565 = T₁₀₅).

The spelling of 2145351 in words is "two million, one hundred forty-five thousand, three hundred fifty-one".