742131 has 12 divisors (see below), whose sum is σ = 1154608. Its totient is φ = 456624.

The previous prime is 742127. The next prime is 742151. The reversal of 742131 is 131247.

742131 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 742131 - 2² = 742127 is a prime.

It is a super-2 number, since 2×742131² = 1101516842322, which contains 22 as substring.

742131 is strictly pandigital in base 7.

742131 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (742111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3055 + ... + 3288.

2⁷⁴²¹³¹ is an apocalyptic number.

742131 is a deficient number, since it is larger than the sum of its proper divisors (412477).

742131 is a wasteful number, since it uses less digits than its factorization.

742131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6362 (or 6359 counting only the distinct ones).

The product of its digits is 168, while the sum is 18.

The square root of 742131 is about 861.4702548550. The cubic root of 742131 is about 90.5371580063.

Adding to 742131 its reverse (131247), we get a palindrome (873378).

The spelling of 742131 in words is "seven hundred forty-two thousand, one hundred thirty-one".