7442145 has 16 divisors (see below), whose sum is σ = 13230720. Its totient is φ = 3969072.

The previous prime is 7442137. The next prime is 7442147. The reversal of 7442145 is 5412447.

7442145 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7442145 - 2³ = 7442137 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (7442147) 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, 27429 + ... + 27698.

It is an arithmetic number, because the mean of its divisors is an integer number (826920).

Almost surely, 2^7442145 is an apocalyptic number.

It is an amenable number.

7442145 is a deficient number, since it is larger than the sum of its proper divisors (5788575).

7442145 is a wasteful number, since it uses less digits than its factorization.

7442145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55141 (or 55135 counting only the distinct ones).

The product of its digits is 4480, while the sum is 27.

The square root of 7442145 is about 2728.0295086381. The cubic root of 7442145 is about 195.2387607930.

The spelling of 7442145 in words is "seven million, four hundred forty-two thousand, one hundred forty-five".