1405137149 has 24 divisors (see below), whose sum is σ = 1548232704. Its totient is φ = 1274520000.

The previous prime is 1405137133. The next prime is 1405137221. The reversal of 1405137149 is 9417315041.

It is not a de Polignac number, because 1405137149 - 2⁴ = 1405137133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1405137119) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3259964 + ... + 3260394.

It is an arithmetic number, because the mean of its divisors is an integer number (64509696).

Almost surely, 2^1405137149 is an apocalyptic number.

It is an amenable number.

1405137149 is a deficient number, since it is larger than the sum of its proper divisors (143095555).

1405137149 is a wasteful number, since it uses less digits than its factorization.

1405137149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 749 (or 736 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 1405137149 is about 37485.1590499494. The cubic root of 1405137149 is about 1120.0555746764.

The spelling of 1405137149 in words is "one billion, four hundred five million, one hundred thirty-seven thousand, one hundred forty-nine".