154709745 has 16 divisors (see below), whose sum is σ = 247914432. Its totient is φ = 82385600.

The previous prime is 154709713. The next prime is 154709771. The reversal of 154709745 is 547907451.

It is a happy number.

It is not a de Polignac number, because 154709745 - 2⁵ = 154709713 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 154709697 and 154709706.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2695 + ... + 17795.

It is an arithmetic number, because the mean of its divisors is an integer number (15494652).

Almost surely, 2^154709745 is an apocalyptic number.

154709745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

154709745 is a deficient number, since it is larger than the sum of its proper divisors (93204687).

154709745 is a wasteful number, since it uses less digits than its factorization.

154709745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15792.

The product of its (nonzero) digits is 176400, while the sum is 42.

The square root of 154709745 is about 12438.2372143323. The cubic root of 154709745 is about 536.8330230687.

The spelling of 154709745 in words is "one hundred fifty-four million, seven hundred nine thousand, seven hundred forty-five".