1201151 has 16 divisors (see below), whose sum is σ = 1458240. Its totient is φ = 967680.

The previous prime is 1201141. The next prime is 1201153. The reversal of 1201151 is 1511021.

It is not a de Polignac number, because 1201151 - 2⁶ = 1201087 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12335 + ... + 12431.

It is an arithmetic number, because the mean of its divisors is an integer number (91140).

2^1201151 is an apocalyptic number.

1201151 is a deficient number, since it is larger than the sum of its proper divisors (257089).

1201151 is an equidigital number, since it uses as much as digits as its factorization.

1201151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194.

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

The square root of 1201151 is about 1095.9703463142. The cubic root of 1201151 is about 106.2998216172.

Adding to 1201151 its reverse (1511021), we get a palindrome (2712172).

The spelling of 1201151 in words is "one million, two hundred one thousand, one hundred fifty-one".