742578145 has 8 divisors (see below), whose sum is σ = 910053504. Its totient is φ = 581422704.

The previous prime is 742578127. The next prime is 742578149. The reversal of 742578145 is 541875247.

742578145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 742578145 - 2¹¹ = 742576097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (742578149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1579719 + ... + 1580188.

It is an arithmetic number, because the mean of its divisors is an integer number (113756688).

Almost surely, 2^742578145 is an apocalyptic number.

It is an amenable number.

742578145 is a deficient number, since it is larger than the sum of its proper divisors (167475359).

742578145 is a wasteful number, since it uses less digits than its factorization.

742578145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3159959.

The product of its digits is 313600, while the sum is 43.

The square root of 742578145 is about 27250.2870627082. The cubic root of 742578145 is about 905.5533768514.

The spelling of 742578145 in words is "seven hundred forty-two million, five hundred seventy-eight thousand, one hundred forty-five".