1438157159 has 8 divisors (see below), whose sum is σ = 1476317760. Its totient is φ = 1400495616.

The previous prime is 1438157153. The next prime is 1438157191. The reversal of 1438157159 is 9517518341.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1438157159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1438157153) 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, 118922 + ... + 130455.

It is an arithmetic number, because the mean of its divisors is an integer number (184539720).

Almost surely, 2^1438157159 is an apocalyptic number.

1438157159 is a deficient number, since it is larger than the sum of its proper divisors (38160601).

1438157159 is an equidigital number, since it uses as much as digits as its factorization.

1438157159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249529.

The product of its digits is 151200, while the sum is 44.

The square root of 1438157159 is about 37923.0425862694. The cubic root of 1438157159 is about 1128.7613124140.

The spelling of 1438157159 in words is "one billion, four hundred thirty-eight million, one hundred fifty-seven thousand, one hundred fifty-nine".