1025143401 has 12 divisors (see below), whose sum is σ = 1451992112. Its totient is φ = 643226688.

The previous prime is 1025143351. The next prime is 1025143403. The reversal of 1025143401 is 1043415201.

It is not a de Polignac number, because 1025143401 - 2⁶ = 1025143337 is a prime.

It is a super-2 number, since 2×1025143401² = 2101837985227693602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1025143403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 590335 + ... + 592068.

Almost surely, 2^1025143401 is an apocalyptic number.

It is an amenable number.

1025143401 is a deficient number, since it is larger than the sum of its proper divisors (426848711).

1025143401 is a wasteful number, since it uses less digits than its factorization.

1025143401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1182440 (or 1182423 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1025143401 is about 32017.8606562025. The cubic root of 1025143401 is about 1008.3118553144.

Adding to 1025143401 its reverse (1043415201), we get a palindrome (2068558602).

The spelling of 1025143401 in words is "one billion, twenty-five million, one hundred forty-three thousand, four hundred one".