742245523 has 4 divisors (see below), whose sum is σ = 745975600. Its totient is φ = 738515448.

The previous prime is 742245521. The next prime is 742245529. The reversal of 742245523 is 325542247.

742245523 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 325542247 = 7487 ⋅43481.

It is a cyclic number.

It is not a de Polignac number, because 742245523 - 2¹ = 742245521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (742245521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1864740 + ... + 1865137.

It is an arithmetic number, because the mean of its divisors is an integer number (186493900).

Almost surely, 2^742245523 is an apocalyptic number.

742245523 is a deficient number, since it is larger than the sum of its proper divisors (3730077).

742245523 is a wasteful number, since it uses less digits than its factorization.

742245523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3730076.

The product of its digits is 67200, while the sum is 34.

The square root of 742245523 is about 27244.1832874469. The cubic root of 742245523 is about 905.4181489019.

The spelling of 742245523 in words is "seven hundred forty-two million, two hundred forty-five thousand, five hundred twenty-three".