1497145839 has 8 divisors (see below), whose sum is σ = 2281365120. Its totient is φ = 855511896.

The previous prime is 1497145829. The next prime is 1497145883. The reversal of 1497145839 is 9385417941.

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

It is not a de Polignac number, because 1497145839 - 2⁷ = 1497145711 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 1497145791 and 1497145800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1497145829) 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, 35646309 + ... + 35646350.

It is an arithmetic number, because the mean of its divisors is an integer number (285170640).

Almost surely, 2^1497145839 is an apocalyptic number.

1497145839 is a deficient number, since it is larger than the sum of its proper divisors (784219281).

1497145839 is an equidigital number, since it uses as much as digits as its factorization.

1497145839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71292669.

The product of its digits is 1088640, while the sum is 51.

The square root of 1497145839 is about 38692.9688574035. The cubic root of 1497145839 is about 1143.9877374005.

The spelling of 1497145839 in words is "one billion, four hundred ninety-seven million, one hundred forty-five thousand, eight hundred thirty-nine".