614220145 has 72 divisors (see below), whose sum is σ = 972286848. Its totient is φ = 368323200.

The previous prime is 614220073. The next prime is 614220157. The reversal of 614220145 is 541022416.

It is a happy number.

It is not a de Polignac number, because 614220145 - 2⁹ = 614219633 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2266360 + ... + 2266630.

It is an arithmetic number, because the mean of its divisors is an integer number (13503984).

Almost surely, 2^614220145 is an apocalyptic number.

It is an amenable number.

614220145 is a deficient number, since it is larger than the sum of its proper divisors (358066703).

614220145 is a wasteful number, since it uses less digits than its factorization.

614220145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359 (or 323 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 614220145 is about 24783.4651532024. The cubic root of 614220145 is about 850.0438939271.

The spelling of 614220145 in words is "six hundred fourteen million, two hundred twenty thousand, one hundred forty-five".