11137431 has 8 divisors (see below), whose sum is σ = 15723504. Its totient is φ = 6988160.

The previous prime is 11137409. The next prime is 11137453. The reversal of 11137431 is 13473111.

It is an interprime number because it is at equal distance from previous prime (11137409) and next prime (11137453).

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

It is a cyclic number.

It is not a de Polignac number, because 11137431 - 2⁹ = 11136919 is a prime.

It is a super-2 number, since 2×11137431² = 248084738559522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11137398 and 11137407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11137031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109140 + ... + 109241.

It is an arithmetic number, because the mean of its divisors is an integer number (1965438).

Almost surely, 2^11137431 is an apocalyptic number.

11137431 is a deficient number, since it is larger than the sum of its proper divisors (4586073).

11137431 is a wasteful number, since it uses less digits than its factorization.

11137431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218401.

The product of its digits is 252, while the sum is 21.

The square root of 11137431 is about 3337.2789814458. The cubic root of 11137431 is about 223.3203717633.

The spelling of 11137431 in words is "eleven million, one hundred thirty-seven thousand, four hundred thirty-one".