2142465 has 16 divisors (see below), whose sum is σ = 3691968. Its totient is φ = 1054656.

The previous prime is 2142463. The next prime is 2142499. The reversal of 2142465 is 5642412.

2142465 is nontrivially palindromic in base 14.

It is not a de Polignac number, because 2142465 - 2¹ = 2142463 is a prime.

2142465 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2142463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5299 + ... + 5688.

It is an arithmetic number, because the mean of its divisors is an integer number (230748).

2^2142465 is an apocalyptic number.

It is an amenable number.

2142465 is a deficient number, since it is larger than the sum of its proper divisors (1549503).

2142465 is a wasteful number, since it uses less digits than its factorization.

2142465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11008.

The product of its digits is 1920, while the sum is 24.

The square root of 2142465 is about 1463.7161610094. The cubic root of 2142465 is about 128.9153341440.

Adding to 2142465 its reverse (5642412), we get a palindrome (7784877).

It can be divided in two parts, 21 and 42465, that added together give a triangular number (42486 = T₂₉₁).

The spelling of 2142465 in words is "two million, one hundred forty-two thousand, four hundred sixty-five".