11742155 has 8 divisors (see below), whose sum is σ = 14919552. Its totient is φ = 8841088.

The previous prime is 11742109. The next prime is 11742173. The reversal of 11742155 is 55124711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11742155 - 2¹⁰ = 11741131 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68987 + ... + 69156.

It is an arithmetic number, because the mean of its divisors is an integer number (1864944).

Almost surely, 2^11742155 is an apocalyptic number.

11742155 is a deficient number, since it is larger than the sum of its proper divisors (3177397).

11742155 is a wasteful number, since it uses less digits than its factorization.

11742155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138165.

The product of its digits is 1400, while the sum is 26.

The square root of 11742155 is about 3426.6827982759. The cubic root of 11742155 is about 227.2911902819.

Adding to 11742155 its reverse (55124711), we get a palindrome (66866866).

The spelling of 11742155 in words is "eleven million, seven hundred forty-two thousand, one hundred fifty-five".