1023401425 has 6 divisors (see below), whose sum is σ = 1269017798. Its totient is φ = 818721120.

The previous prime is 1023401417. The next prime is 1023401437. The reversal of 1023401425 is 5241043201.

It can be written as a sum of positive squares in 3 ways, for example, as 10188864 + 1013212561 = 3192^2 + 31831^2 .

It is not a de Polignac number, because 1023401425 - 2³ = 1023401417 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1023401396 and 1023401405.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20468004 + ... + 20468053.

Almost surely, 2^1023401425 is an apocalyptic number.

It is an amenable number.

1023401425 is a deficient number, since it is larger than the sum of its proper divisors (245616373).

1023401425 is an equidigital number, since it uses as much as digits as its factorization.

1023401425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40936067 (or 40936062 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 1023401425 is about 31990.6458984498. The cubic root of 1023401425 is about 1007.7404065209.

Adding to 1023401425 its reverse (5241043201), we get a palindrome (6264444626).

The spelling of 1023401425 in words is "one billion, twenty-three million, four hundred one thousand, four hundred twenty-five".