154770945 has 32 divisors (see below), whose sum is σ = 284777472. Its totient is φ = 70310592.

The previous prime is 154770943. The next prime is 154770961. The reversal of 154770945 is 549077451.

It is a happy number.

It is not a de Polignac number, because 154770945 - 2¹ = 154770943 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 154770897 and 154770906.

It is not an unprimeable number, because it can be changed into a prime (154770943) 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, 12594 + ... + 21636.

It is an arithmetic number, because the mean of its divisors is an integer number (8899296).

Almost surely, 2^154770945 is an apocalyptic number.

154770945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

154770945 is a deficient number, since it is larger than the sum of its proper divisors (130006527).

154770945 is a wasteful number, since it uses less digits than its factorization.

154770945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9221.

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

The square root of 154770945 is about 12440.6971267691. The cubic root of 154770945 is about 536.9038004456.

The spelling of 154770945 in words is "one hundred fifty-four million, seven hundred seventy thousand, nine hundred forty-five".