1430157 has 4 divisors (see below), whose sum is σ = 1906880. Its totient is φ = 953436.

The previous prime is 1430131. The next prime is 1430167. The reversal of 1430157 is 7510341.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1430157 - 2¹⁰ = 1429133 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1430167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 238357 + ... + 238362.

It is an arithmetic number, because the mean of its divisors is an integer number (476720).

2^1430157 is an apocalyptic number.

It is an amenable number.

1430157 is a deficient number, since it is larger than the sum of its proper divisors (476723).

1430157 is an equidigital number, since it uses as much as digits as its factorization.

1430157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476722.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 1430157 is about 1195.8917175062. The cubic root of 1430157 is about 112.6664400557. Note that the first 3 decimals are identical.

Adding to 1430157 its reverse (7510341), we get a palindrome (8940498).

The spelling of 1430157 in words is "one million, four hundred thirty thousand, one hundred fifty-seven".