154913643 has 6 divisors (see below), whose sum is σ = 223764164. Its totient is φ = 103275756.

The previous prime is 154913623. The next prime is 154913651. The reversal of 154913643 is 346319451.

154913643 is a `hidden beast` number, since 1 + 5 + 4 + 9 + 1 + 3 + 643 = 666.

It is not a de Polignac number, because 154913643 - 2⁹ = 154913131 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 154913598 and 154913607.

It is not an unprimeable number, because it can be changed into a prime (154913623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8606305 + ... + 8606322.

Almost surely, 2^154913643 is an apocalyptic number.

154913643 is a deficient number, since it is larger than the sum of its proper divisors (68850521).

154913643 is a wasteful number, since it uses less digits than its factorization.

154913643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17212633 (or 17212630 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 154913643 is about 12446.4309342076. The cubic root of 154913643 is about 537.0687572561.

The spelling of 154913643 in words is "one hundred fifty-four million, nine hundred thirteen thousand, six hundred forty-three".