10247531 has 4 divisors (see below), whose sum is σ = 11711472. Its totient is φ = 8783592.

The previous prime is 10247513. The next prime is 10247539. The reversal of 10247531 is 13574201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13574201 = 53 ⋅256117.

It is a cyclic number.

It is not a de Polignac number, because 10247531 - 2²² = 6053227 is a prime.

It is a super-2 number, since 2×10247531² = 210023783191922, 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 = 10247497 and 10247506.

It is not an unprimeable number, because it can be changed into a prime (10247539) 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, 731960 + ... + 731973.

It is an arithmetic number, because the mean of its divisors is an integer number (2927868).

Almost surely, 2^10247531 is an apocalyptic number.

10247531 is a deficient number, since it is larger than the sum of its proper divisors (1463941).

10247531 is an equidigital number, since it uses as much as digits as its factorization.

10247531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1463940.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 10247531 is about 3201.1765024753. The cubic root of 10247531 is about 217.2066313841.

The spelling of 10247531 in words is "ten million, two hundred forty-seven thousand, five hundred thirty-one".