1421463425 has 12 divisors (see below), whose sum is σ = 1763504316. Its totient is φ = 1136596800.

The previous prime is 1421463383. The next prime is 1421463467. The reversal of 1421463425 is 5243641241.

It is an interprime number because it is at equal distance from previous prime (1421463383) and next prime (1421463467).

It can be written as a sum of positive squares in 6 ways, for example, as 19784704 + 1401678721 = 4448^2 + 37439^2 .

It is not a de Polignac number, because 1421463425 - 2⁶ = 1421463361 is a prime.

It is a super-2 number, since 2×1421463425² = 4041116537225461250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1421463391 and 1421463400.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40247 + ... + 66803.

It is an arithmetic number, because the mean of its divisors is an integer number (146958693).

Almost surely, 2^1421463425 is an apocalyptic number.

It is an amenable number.

1421463425 is a deficient number, since it is larger than the sum of its proper divisors (342040891).

1421463425 is a wasteful number, since it uses less digits than its factorization.

1421463425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28708 (or 28703 counting only the distinct ones).

The product of its digits is 23040, while the sum is 32.

The square root of 1421463425 is about 37702.2999961541. The cubic root of 1421463425 is about 1124.3768532515.

The spelling of 1421463425 in words is "one billion, four hundred twenty-one million, four hundred sixty-three thousand, four hundred twenty-five".