742161247 has 8 divisors (see below), whose sum is σ = 750738560. Its totient is φ = 733610520.

The previous prime is 742161241. The next prime is 742161257.

It is a happy number.

742161247 is nontrivially palindromic in base 10.

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 742161247 - 2¹⁵ = 742128479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742161241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52504 + ... + 65122.

It is an arithmetic number, because the mean of its divisors is an integer number (93842320).

Almost surely, 2^742161247 is an apocalyptic number.

742161247 is a deficient number, since it is larger than the sum of its proper divisors (8577313).

742161247 is a wasteful number, since it uses less digits than its factorization.

742161247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13293.

The product of its digits is 18816, while the sum is 34.

The square root of 742161247 is about 27242.6365647674. The cubic root of 742161247 is about 905.3838799592.

The spelling of 742161247 in words is "seven hundred forty-two million, one hundred sixty-one thousand, two hundred forty-seven".