157478 has 8 divisors (see below), whose sum is σ = 239760. Its totient is φ = 77560.

The previous prime is 157477. The next prime is 157483. The reversal of 157478 is 874751.

157478 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157477) 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, 413 + ... + 696.

It is an arithmetic number, because the mean of its divisors is an integer number (29970).

2¹⁵⁷⁴⁷⁸ is an apocalyptic number.

157478 is a deficient number, since it is larger than the sum of its proper divisors (82282).

157478 is a wasteful number, since it uses less digits than its factorization.

157478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1182.

The product of its digits is 7840, while the sum is 32.

The square root of 157478 is about 396.8349782970. The cubic root of 157478 is about 54.0016003184.

The spelling of 157478 in words is "one hundred fifty-seven thousand, four hundred seventy-eight".