9742531 has 4 divisors (see below), whose sum is σ = 9751312. Its totient is φ = 9733752.

The previous prime is 9742511. The next prime is 9742541. The reversal of 9742531 is 1352479.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9742531 is a prime.

It is a super-2 number, since 2×9742531² = 189833820571922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9742493 and 9742502.

It is not an unprimeable number, because it can be changed into a prime (9742511) 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, 2436 + ... + 5041.

It is an arithmetic number, because the mean of its divisors is an integer number (2437828).

Almost surely, 2^9742531 is an apocalyptic number.

9742531 is a deficient number, since it is larger than the sum of its proper divisors (8781).

9742531 is a wasteful number, since it uses less digits than its factorization.

9742531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8780.

The product of its digits is 7560, while the sum is 31.

The square root of 9742531 is about 3121.3027728819. The cubic root of 9742531 is about 213.5783688883.

The spelling of 9742531 in words is "nine million, seven hundred forty-two thousand, five hundred thirty-one".