1204151 has 4 divisors (see below), whose sum is σ = 1296792. Its totient is φ = 1111512.

The previous prime is 1204141. The next prime is 1204153. The reversal of 1204151 is 1514021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1514021 = 23 ⋅65827.

It is a cyclic number.

It is not a de Polignac number, because 1204151 - 2¹⁰ = 1203127 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1204153) 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, 46301 + ... + 46326.

It is an arithmetic number, because the mean of its divisors is an integer number (324198).

2^1204151 is an apocalyptic number.

1204151 is a deficient number, since it is larger than the sum of its proper divisors (92641).

1204151 is an equidigital number, since it uses as much as digits as its factorization.

1204151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92640.

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 1204151 is about 1097.3381429623. The cubic root of 1204151 is about 106.3882463414.

Adding to 1204151 its reverse (1514021), we get a palindrome (2718172).

The spelling of 1204151 in words is "one million, two hundred four thousand, one hundred fifty-one".