1210451425 has 12 divisors (see below), whose sum is σ = 1589252076. Its totient is φ = 911398400.

The previous prime is 1210451423. The next prime is 1210451477. The reversal of 1210451425 is 5241540121.

It can be written as a sum of positive squares in 6 ways, for example, as 12737761 + 1197713664 = 3569^2 + 34608^2 .

It is not a de Polignac number, because 1210451425 - 2¹ = 1210451423 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1210451425.

It is not an unprimeable number, because it can be changed into a prime (1210451423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1423636 + ... + 1424485.

It is an arithmetic number, because the mean of its divisors is an integer number (132437673).

Almost surely, 2^1210451425 is an apocalyptic number.

It is an amenable number.

1210451425 is a deficient number, since it is larger than the sum of its proper divisors (378800651).

1210451425 is a wasteful number, since it uses less digits than its factorization.

1210451425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2848148 (or 2848143 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 1210451425 is about 34791.5424349079. The cubic root of 1210451425 is about 1065.7347380559.

Adding to 1210451425 its reverse (5241540121), we get a palindrome (6451991546).

The spelling of 1210451425 in words is "one billion, two hundred ten million, four hundred fifty-one thousand, four hundred twenty-five".