1354397949 has 8 divisors (see below), whose sum is σ = 2006515520. Its totient is φ = 902931948.

The previous prime is 1354397929. The next prime is 1354397959. The reversal of 1354397949 is 9497934531.

It is a happy number.

1354397949 is a `hidden beast` number, since 1 + 3 + 543 + 9 + 7 + 94 + 9 = 666.

It is not a de Polignac number, because 1354397949 - 2¹⁷ = 1354266877 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1354397895 and 1354397904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1354397929) 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, 25081417 + ... + 25081470.

It is an arithmetic number, because the mean of its divisors is an integer number (250814440).

Almost surely, 2^1354397949 is an apocalyptic number.

It is an amenable number.

1354397949 is a deficient number, since it is larger than the sum of its proper divisors (652117571).

1354397949 is an equidigital number, since it uses as much as digits as its factorization.

1354397949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50162896 (or 50162890 counting only the distinct ones).

The product of its digits is 3674160, while the sum is 54.

The square root of 1354397949 is about 36802.1459836244. The cubic root of 1354397949 is about 1106.4083103516.

The spelling of 1354397949 in words is "one billion, three hundred fifty-four million, three hundred ninety-seven thousand, nine hundred forty-nine".