1401155425 has 24 divisors (see below), whose sum is σ = 1757387520. Its totient is φ = 1108128000.

The previous prime is 1401155383. The next prime is 1401155429. The reversal of 1401155425 is 5245511041.

It is not a de Polignac number, because 1401155425 - 2¹³ = 1401147233 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1401155393 and 1401155402.

It is not an unprimeable number, because it can be changed into a prime (1401155429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 901449 + ... + 903001.

It is an arithmetic number, because the mean of its divisors is an integer number (73224480).

Almost surely, 2^1401155425 is an apocalyptic number.

It is an amenable number.

1401155425 is a deficient number, since it is larger than the sum of its proper divisors (356232095).

1401155425 is a wasteful number, since it uses less digits than its factorization.

1401155425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1953 (or 1948 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 28.

The square root of 1401155425 is about 37432.0106994001. The cubic root of 1401155425 is about 1118.9966101168.

Adding to 1401155425 its reverse (5245511041), we get a palindrome (6646666466).

The spelling of 1401155425 in words is "one billion, four hundred one million, one hundred fifty-five thousand, four hundred twenty-five".