157449 has 8 divisors (see below), whose sum is σ = 216832. Its totient is φ = 101520.

The previous prime is 157433. The next prime is 157457. The reversal of 157449 is 944751.

It is a happy number.

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

It is not a de Polignac number, because 157449 - 2⁴ = 157433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157429) 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, 754 + ... + 939.

It is an arithmetic number, because the mean of its divisors is an integer number (27104).

2¹⁵⁷⁴⁴⁹ is an apocalyptic number.

It is an amenable number.

157449 is a deficient number, since it is larger than the sum of its proper divisors (59383).

157449 is a wasteful number, since it uses less digits than its factorization.

157449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1727.

The product of its digits is 5040, while the sum is 30.

The square root of 157449 is about 396.7984374969. The cubic root of 157449 is about 53.9982852679.

It can be divided in two parts, 15744 and 9, that added together give a triangular number (15753 = T₁₇₇).

The spelling of 157449 in words is "one hundred fifty-seven thousand, four hundred forty-nine".