7542645 has 32 divisors (see below), whose sum is σ = 13944960. Its totient is φ = 3440640.

The previous prime is 7542629. The next prime is 7542653. The reversal of 7542645 is 5462457.

7542645 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7542645 - 2⁴ = 7542629 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1461 + ... + 4149.

It is an arithmetic number, because the mean of its divisors is an integer number (435780).

Almost surely, 2^7542645 is an apocalyptic number.

It is an amenable number.

7542645 is a deficient number, since it is larger than the sum of its proper divisors (6402315).

7542645 is a wasteful number, since it uses less digits than its factorization.

7542645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2725.

The product of its digits is 33600, while the sum is 33.

The square root of 7542645 is about 2746.3876274117. The cubic root of 7542645 is about 196.1136800614.

The spelling of 7542645 in words is "seven million, five hundred forty-two thousand, six hundred forty-five".