1023151 has 4 divisors (see below), whose sum is σ = 1029592. Its totient is φ = 1016712.

The previous prime is 1023133. The next prime is 1023163. The reversal of 1023151 is 1513201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1513201 = 283 ⋅5347.

It is a cyclic number.

It is not a de Polignac number, because 1023151 - 2⁹ = 1022639 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 (1023101) 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, 2976 + ... + 3301.

It is an arithmetic number, because the mean of its divisors is an integer number (257398).

2^1023151 is an apocalyptic number.

1023151 is a deficient number, since it is larger than the sum of its proper divisors (6441).

1023151 is an equidigital number, since it uses as much as digits as its factorization.

1023151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6440.

The product of its (nonzero) digits is 30, while the sum is 13.

The square root of 1023151 is about 1011.5092683708. The cubic root of 1023151 is about 100.7658202226.

Adding to 1023151 its reverse (1513201), we get a palindrome (2536352).

The spelling of 1023151 in words is "one million, twenty-three thousand, one hundred fifty-one".