1374151649 has 8 divisors (see below), whose sum is σ = 1557743040. Its totient is φ = 1201687056.

The previous prime is 1374151627. The next prime is 1374151661. The reversal of 1374151649 is 9461514731.

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-1374151649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1374151609) 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, 2781437 + ... + 2781930.

It is an arithmetic number, because the mean of its divisors is an integer number (194717880).

Almost surely, 2^1374151649 is an apocalyptic number.

1374151649 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1374151649 is a deficient number, since it is larger than the sum of its proper divisors (183591391).

1374151649 is a wasteful number, since it uses less digits than its factorization.

1374151649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5563399.

The product of its digits is 90720, while the sum is 41.

The square root of 1374151649 is about 37069.5515079425. The cubic root of 1374151649 is about 1111.7613054192.

The spelling of 1374151649 in words is "one billion, three hundred seventy-four million, one hundred fifty-one thousand, six hundred forty-nine".