10012155 has 8 divisors (see below), whose sum is σ = 16019472. Its totient is φ = 5339808.

The previous prime is 10012141. The next prime is 10012157. The reversal of 10012155 is 55121001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10012155 - 2⁶ = 10012091 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 667477 = 10012155 / (1 + 0 + 0 + 1 + 2 + 1 + 5 + 5).

It is not an unprimeable number, because it can be changed into a prime (10012157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 333724 + ... + 333753.

It is an arithmetic number, because the mean of its divisors is an integer number (2002434).

Almost surely, 2^10012155 is an apocalyptic number.

10012155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

10012155 is a deficient number, since it is larger than the sum of its proper divisors (6007317).

10012155 is an equidigital number, since it uses as much as digits as its factorization.

10012155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667485.

The product of its (nonzero) digits is 50, while the sum is 15.

The square root of 10012155 is about 3164.1989507615. The cubic root of 10012155 is about 215.5307241720.

Adding to 10012155 its reverse (55121001), we get a palindrome (65133156).

The spelling of 10012155 in words is "ten million, twelve thousand, one hundred fifty-five".