1020151 has 6 divisors (see below), whose sum is σ = 1121456. Its totient is φ = 927300.

The previous prime is 1020143. The next prime is 1020157. The reversal of 1020151 is 1510201.

It is a happy number.

It is not a de Polignac number, because 1020151 - 2³ = 1020143 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 (1020157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4095 + ... + 4336.

2^1020151 is an apocalyptic number.

1020151 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1020151 is a deficient number, since it is larger than the sum of its proper divisors (101305).

1020151 is an equidigital number, since it uses as much as digits as its factorization.

1020151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8453 (or 8442 counting only the distinct ones).

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

The square root of 1020151 is about 1010.0252472092. The cubic root of 1020151 is about 100.6672380321.

Adding to 1020151 its reverse (1510201), we get a palindrome (2530352).

The spelling of 1020151 in words is "one million, twenty thousand, one hundred fifty-one".