10155321 has 32 divisors (see below), whose sum is σ = 16957440. Its totient is φ = 5950800.

The previous prime is 10155317. The next prime is 10155347. The reversal of 10155321 is 12355101.

It is not a de Polignac number, because 10155321 - 2² = 10155317 is a prime.

It is a super-2 number, since 2×10155321² = 206261089226082, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10155294 and 10155303.

It is not an unprimeable number, because it can be changed into a prime (10155361) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8656 + ... + 9758.

It is an arithmetic number, because the mean of its divisors is an integer number (529920).

Almost surely, 2^10155321 is an apocalyptic number.

10155321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10155321 is a deficient number, since it is larger than the sum of its proper divisors (6802119).

10155321 is a wasteful number, since it uses less digits than its factorization.

10155321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1154 (or 1148 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 10155321 is about 3186.7414391507. The cubic root of 10155321 is about 216.5531731708.

It can be divided in two parts, 1015 and 5321, that added together give a palindrome (6336).

The spelling of 10155321 in words is "ten million, one hundred fifty-five thousand, three hundred twenty-one".