1523394849 has 4 divisors (see below), whose sum is σ = 2031193136. Its totient is φ = 1015596564.

The previous prime is 1523394833. The next prime is 1523394877. The reversal of 1523394849 is 9484933251.

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 1523394849 - 2⁴ = 1523394833 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1523394798 and 1523394807.

It is not an unprimeable number, because it can be changed into a prime (1523394349) 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, 253899139 + ... + 253899144.

It is an arithmetic number, because the mean of its divisors is an integer number (507798284).

Almost surely, 2^1523394849 is an apocalyptic number.

It is an amenable number.

1523394849 is a deficient number, since it is larger than the sum of its proper divisors (507798287).

1523394849 is an equidigital number, since it uses as much as digits as its factorization.

1523394849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507798286.

The product of its digits is 933120, while the sum is 48.

The square root of 1523394849 is about 39030.6911160948. The cubic root of 1523394849 is about 1150.6347721779.

The spelling of 1523394849 in words is "one billion, five hundred twenty-three million, three hundred ninety-four thousand, eight hundred forty-nine".