154147797 has 24 divisors (see below), whose sum is σ = 227675448. Its totient is φ = 100464000.

The previous prime is 154147787. The next prime is 154147811. The reversal of 154147797 is 797741451.

It can be written as a sum of positive squares in 4 ways, for example, as 51753636 + 102394161 = 7194^2 + 10119^2 .

It is not a de Polignac number, because 154147797 - 2¹² = 154143701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154147757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 219547 + ... + 220247.

It is an arithmetic number, because the mean of its divisors is an integer number (9486477).

Almost surely, 2^154147797 is an apocalyptic number.

It is an amenable number.

154147797 is a deficient number, since it is larger than the sum of its proper divisors (73527651).

154147797 is a wasteful number, since it uses less digits than its factorization.

154147797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1221 (or 1218 counting only the distinct ones).

The product of its digits is 246960, while the sum is 45.

The square root of 154147797 is about 12415.6271287438. The cubic root of 154147797 is about 536.1822598509.

The spelling of 154147797 in words is "one hundred fifty-four million, one hundred forty-seven thousand, seven hundred ninety-seven".