11661354 has 32 divisors (see below), whose sum is σ = 27440640. Its totient is φ = 3658176.

The previous prime is 11661347. The next prime is 11661361. The reversal of 11661354 is 45316611.

It is an interprime number because it is at equal distance from previous prime (11661347) and next prime (11661361).

It is a super-2 number, since 2×11661354² = 271974354226632, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5434 + ... + 7269.

It is an arithmetic number, because the mean of its divisors is an integer number (857520).

Almost surely, 2^11661354 is an apocalyptic number.

11661354 is an abundant number, since it is smaller than the sum of its proper divisors (15779286).

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

11661354 is a wasteful number, since it uses less digits than its factorization.

11661354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12731 (or 12725 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 11661354 is about 3414.8724719966. The cubic root of 11661354 is about 226.7686387588.

Adding to 11661354 its reverse (45316611), we get a palindrome (56977965).

The spelling of 11661354 in words is "eleven million, six hundred sixty-one thousand, three hundred fifty-four".