154245425 has 12 divisors (see below), whose sum is σ = 191719500. Its totient is φ = 123102720.

The previous prime is 154245397. The next prime is 154245449. The reversal of 154245425 is 524542451.

It can be written as a sum of positive squares in 6 ways, for example, as 8898289 + 145347136 = 2983^2 + 12056^2 .

It is a de Polignac number, because none of the positive numbers 2^k-154245425 is a prime.

It is a super-2 number, since 2×154245425² = 47583302266861250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 154245391 and 154245400.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3701 + ... + 17949.

It is an arithmetic number, because the mean of its divisors is an integer number (15976625).

Almost surely, 2^154245425 is an apocalyptic number.

It is an amenable number.

154245425 is a deficient number, since it is larger than the sum of its proper divisors (37474075).

154245425 is a wasteful number, since it uses less digits than its factorization.

154245425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14692 (or 14687 counting only the distinct ones).

The product of its digits is 32000, while the sum is 32.

The square root of 154245425 is about 12419.5581644437. The cubic root of 154245425 is about 536.2954312261.

Adding to 154245425 its reverse (524542451), we get a palindrome (678787876).

The spelling of 154245425 in words is "one hundred fifty-four million, two hundred forty-five thousand, four hundred twenty-five".