10156397 has 4 divisors (see below), whose sum is σ = 10404156. Its totient is φ = 9908640.

The previous prime is 10156369. The next prime is 10156403. The reversal of 10156397 is 79365101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79365101 = 4013 ⋅19777.

It can be written as a sum of positive squares in 2 ways, for example, as 259081 + 9897316 = 509^2 + 3146^2 .

It is a cyclic number.

It is not a de Polignac number, because 10156397 - 2¹² = 10152301 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 (10156357) 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, 123818 + ... + 123899.

It is an arithmetic number, because the mean of its divisors is an integer number (2601039).

Almost surely, 2^10156397 is an apocalyptic number.

It is an amenable number.

10156397 is a deficient number, since it is larger than the sum of its proper divisors (247759).

10156397 is an equidigital number, since it uses as much as digits as its factorization.

10156397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247758.

The product of its (nonzero) digits is 5670, while the sum is 32.

The square root of 10156397 is about 3186.9102591695. The cubic root of 10156397 is about 216.5608211478.

The spelling of 10156397 in words is "ten million, one hundred fifty-six thousand, three hundred ninety-seven".