1012151 has 4 divisors (see below), whose sum is σ = 1156752. Its totient is φ = 867552.

The previous prime is 1012147. The next prime is 1012159. The reversal of 1012151 is 1512101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1512101 = 1021 ⋅1481.

It is not a de Polignac number, because 1012151 - 2² = 1012147 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 (1012159) 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, 72290 + ... + 72303.

It is an arithmetic number, because the mean of its divisors is an integer number (289188).

2^1012151 is an apocalyptic number.

1012151 is a deficient number, since it is larger than the sum of its proper divisors (144601).

1012151 is an equidigital number, since it uses as much as digits as its factorization.

1012151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144600.

The product of its (nonzero) digits is 10, while the sum is 11.

The square root of 1012151 is about 1006.0571554340. The cubic root of 1012151 is about 100.4034037988.

Adding to 1012151 its reverse (1512101), we get a palindrome (2524252).

The spelling of 1012151 in words is "one million, twelve thousand, one hundred fifty-one".