14157431 has 4 divisors (see below), whose sum is σ = 14282832. Its totient is φ = 14032032.

The previous prime is 14157391. The next prime is 14157433. The reversal of 14157431 is 13475141.

14157431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13475141 = 37 ⋅364193.

It is a cyclic number.

It is not a de Polignac number, because 14157431 - 2¹⁰ = 14156407 is a prime.

It is a super-2 number, since 2×14157431² = 400865705039522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 14157431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14157433) 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, 62531 + ... + 62756.

It is an arithmetic number, because the mean of its divisors is an integer number (3570708).

Almost surely, 2^14157431 is an apocalyptic number.

14157431 is a deficient number, since it is larger than the sum of its proper divisors (125401).

14157431 is a wasteful number, since it uses less digits than its factorization.

14157431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125400.

The product of its digits is 1680, while the sum is 26.

The square root of 14157431 is about 3762.6361769377. The cubic root of 14157431 is about 241.9142685188.

The spelling of 14157431 in words is "fourteen million, one hundred fifty-seven thousand, four hundred thirty-one".