742141531 has 4 divisors (see below), whose sum is σ = 742373064. Its totient is φ = 741910000.

The previous prime is 742141507. The next prime is 742141559. The reversal of 742141531 is 135141247.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 135141247 = 29 ⋅4660043.

It is a cyclic number.

It is not a de Polignac number, because 742141531 - 2⁹ = 742141019 is a prime.

It is a super-2 number, since 2×742141531² = 1101548104070047922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 742141531.

It is not an unprimeable number, because it can be changed into a prime (742141831) 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, 110890 + ... + 117391.

It is an arithmetic number, because the mean of its divisors is an integer number (185593266).

Almost surely, 2^742141531 is an apocalyptic number.

742141531 is a deficient number, since it is larger than the sum of its proper divisors (231533).

742141531 is a wasteful number, since it uses less digits than its factorization.

742141531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231532.

The product of its digits is 3360, while the sum is 28.

The square root of 742141531 is about 27242.2747031154. The cubic root of 742141531 is about 905.3758625161.

Adding to 742141531 its reverse (135141247), we get a palindrome (877282778).

The spelling of 742141531 in words is "seven hundred forty-two million, one hundred forty-one thousand, five hundred thirty-one".