65421454 has 16 divisors (see below), whose sum is σ = 112317408. Its totient is φ = 27996192.

The previous prime is 65421443. The next prime is 65421467. The reversal of 65421454 is 45412456.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7512 + ... + 13684.

It is an arithmetic number, because the mean of its divisors is an integer number (7019838).

Almost surely, 2^65421454 is an apocalyptic number.

65421454 is a deficient number, since it is larger than the sum of its proper divisors (46895954).

65421454 is a wasteful number, since it uses less digits than its factorization.

65421454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6939.

The product of its digits is 19200, while the sum is 31.

The square root of 65421454 is about 8088.3529843844. The cubic root of 65421454 is about 402.9397049115.

The spelling of 65421454 in words is "sixty-five million, four hundred twenty-one thousand, four hundred fifty-four".