1420401125 has 64 divisors (see below), whose sum is σ = 2097688320. Its totient is φ = 946656000.

The previous prime is 1420401109. The next prime is 1420401131. The reversal of 1420401125 is 5211040241.

It is a happy number.

It is not a de Polignac number, because 1420401125 - 2⁴ = 1420401109 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1420401097 and 1420401106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4093202 + ... + 4093548.

It is an arithmetic number, because the mean of its divisors is an integer number (32776380).

Almost surely, 2^1420401125 is an apocalyptic number.

It is an amenable number.

1420401125 is a deficient number, since it is larger than the sum of its proper divisors (677287195).

1420401125 is a wasteful number, since it uses less digits than its factorization.

1420401125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615 (or 605 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 1420401125 is about 37688.2093631417. The cubic root of 1420401125 is about 1124.0966905271.

Adding to 1420401125 its reverse (5211040241), we get a palindrome (6631441366).

The spelling of 1420401125 in words is "one billion, four hundred twenty million, four hundred one thousand, one hundred twenty-five".