11742151 has 4 divisors (see below), whose sum is σ = 11992032. Its totient is φ = 11492272.

The previous prime is 11742109. The next prime is 11742173. The reversal of 11742151 is 15124711.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11742151 - 2¹⁷ = 11611079 is a prime.

It is a super-2 number, since 2×11742151² = 275756220213602, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11742251) 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, 124870 + ... + 124963.

It is an arithmetic number, because the mean of its divisors is an integer number (2998008).

Almost surely, 2^11742151 is an apocalyptic number.

11742151 is a deficient number, since it is larger than the sum of its proper divisors (249881).

11742151 is an equidigital number, since it uses as much as digits as its factorization.

11742151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249880.

The product of its digits is 280, while the sum is 22.

The square root of 11742151 is about 3426.6822146210. The cubic root of 11742151 is about 227.2911644728.

Adding to 11742151 its reverse (15124711), we get a palindrome (26866862).

The spelling of 11742151 in words is "eleven million, seven hundred forty-two thousand, one hundred fifty-one".