1420641351 has 6 divisors (see below), whose sum is σ = 2052037520. Its totient is φ = 947094228.

The previous prime is 1420641323. The next prime is 1420641359. The reversal of 1420641351 is 1531460241.

It is a happy number.

1420641351 is a `hidden beast` number, since 14 + 2 + 0 + 641 + 3 + 5 + 1 = 666.

It is not a de Polignac number, because 1420641351 - 2⁵ = 1420641319 is a prime.

It is a super-2 number, since 2×1420641351² = 4036443696342210402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420641359) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 78924511 + ... + 78924528.

Almost surely, 2^1420641351 is an apocalyptic number.

1420641351 is a deficient number, since it is larger than the sum of its proper divisors (631396169).

1420641351 is a wasteful number, since it uses less digits than its factorization.

1420641351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157849045 (or 157849042 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 1420641351 is about 37691.3962463584. The cubic root of 1420641351 is about 1124.1600580798.

The spelling of 1420641351 in words is "one billion, four hundred twenty million, six hundred forty-one thousand, three hundred fifty-one".