1494528143 has 4 divisors (see below), whose sum is σ = 1503167208. Its totient is φ = 1485889080.

The previous prime is 1494528107. The next prime is 1494528173. The reversal of 1494528143 is 3418254941.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1494528143 - 2¹² = 1494524047 is a prime.

It is a super-2 number, since 2×1494528143² = 4467228740438056898, 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 1494528143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1494528173) 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, 4319273 + ... + 4319618.

It is an arithmetic number, because the mean of its divisors is an integer number (375791802).

Almost surely, 2^1494528143 is an apocalyptic number.

1494528143 is a deficient number, since it is larger than the sum of its proper divisors (8639065).

1494528143 is an equidigital number, since it uses as much as digits as its factorization.

1494528143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8639064.

The product of its digits is 138240, while the sum is 41.

The square root of 1494528143 is about 38659.1275509420. The cubic root of 1494528143 is about 1143.3206104222.

The spelling of 1494528143 in words is "one billion, four hundred ninety-four million, five hundred twenty-eight thousand, one hundred forty-three".