1151620 has 24 divisors (see below), whose sum is σ = 2455488. Its totient is φ = 453600.

The previous prime is 1151611. The next prime is 1151629. The reversal of 1151620 is 261511.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1151611) and next prime (1151629).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1151594 and 1151603.

It is not an unprimeable number, because it can be changed into a prime (1151629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1015 + ... + 1825.

It is an arithmetic number, because the mean of its divisors is an integer number (102312).

2^1151620 is an apocalyptic number.

1151620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1151620 is an abundant number, since it is smaller than the sum of its proper divisors (1303868).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1151620 is a wasteful number, since it uses less digits than its factorization.

1151620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 891 (or 889 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 1151620 is about 1073.1355925511. The cubic root of 1151620 is about 104.8181280918.

It can be divided in two parts, 1151 and 620, that added together give a palindrome (1771).

The spelling of 1151620 in words is "one million, one hundred fifty-one thousand, six hundred twenty".