2140346145 has 32 divisors (see below), whose sum is σ = 3950373888. Its totient is φ = 969294528.

The previous prime is 2140346129. The next prime is 2140346147. The reversal of 2140346145 is 5416430412.

It is not a de Polignac number, because 2140346145 - 2⁴ = 2140346129 is a prime.

It is a super-2 number, since 2×2140346145² = 9162163240832722050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2140346147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 84019 + ... + 106488.

It is an arithmetic number, because the mean of its divisors is an integer number (123449184).

Almost surely, 2^2140346145 is an apocalyptic number.

It is an amenable number.

2140346145 is a deficient number, since it is larger than the sum of its proper divisors (1810027743).

2140346145 is a wasteful number, since it uses less digits than its factorization.

2140346145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190629.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 2140346145 is about 46263.8751619447. The cubic root of 2140346145 is about 1288.7282189802.

Adding to 2140346145 its reverse (5416430412), we get a palindrome (7556776557).

The spelling of 2140346145 in words is "two billion, one hundred forty million, three hundred forty-six thousand, one hundred forty-five".