154077945 has 32 divisors (see below), whose sum is σ = 282243072. Its totient is φ = 70310592.

The previous prime is 154077929. The next prime is 154077949. The reversal of 154077945 is 549770451.

It is a happy number.

It is not a de Polignac number, because 154077945 - 2⁴ = 154077929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 154077897 and 154077906.

It is not an unprimeable number, because it can be changed into a prime (154077949) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 85524 + ... + 87306.

It is an arithmetic number, because the mean of its divisors is an integer number (8820096).

Almost surely, 2^154077945 is an apocalyptic number.

154077945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

154077945 is a deficient number, since it is larger than the sum of its proper divisors (128165127).

154077945 is a wasteful number, since it uses less digits than its factorization.

154077945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2621.

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

The square root of 154077945 is about 12412.8137422584. The cubic root of 154077945 is about 536.1012573699.

The spelling of 154077945 in words is "one hundred fifty-four million, seventy-seven thousand, nine hundred forty-five".