102012145 has 16 divisors (see below), whose sum is σ = 126425088. Its totient is φ = 78960960.

The previous prime is 102012133. The next prime is 102012179. The reversal of 102012145 is 541210201.

It is not a de Polignac number, because 102012145 - 2⁷ = 102012017 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33892 + ... + 36778.

It is an arithmetic number, because the mean of its divisors is an integer number (7901568).

Almost surely, 2^102012145 is an apocalyptic number.

It is an amenable number.

102012145 is a deficient number, since it is larger than the sum of its proper divisors (24412943).

102012145 is a wasteful number, since it uses less digits than its factorization.

102012145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3120.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 102012145 is about 10100.1061875606. The cubic root of 102012145 is about 467.2514163585.

Adding to 102012145 its reverse (541210201), we get a palindrome (643222346).

The spelling of 102012145 in words is "one hundred two million, twelve thousand, one hundred forty-five".