64154546 has 4 divisors (see below), whose sum is σ = 96231822.
Its totient is φ = 32077272.
The previous prime is 64154537. The next prime is 64154561. The reversal of 64154546 is 64545146.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64545146 = 2 ⋅32272573.
It can be written as a sum of positive squares in only one way, i.e., 62236321 + 1918225 = 7889^2 + 1385^2
It is a super-2 number, since 2×641545462 = 8231611544932232, which contains 22 as substring.
It is an unprimeable number.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16038635 + ... + 16038638.
Almost surely, 264154546 is an apocalyptic number.
64154546 is a deficient number, since it is larger than the sum of its proper divisors (32077276).
64154546 is a wasteful number, since it uses less digits than its factorization.
64154546 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 32077275.
The product of its digits is 57600, while the sum is 35.
The square root of 64154546 is about 8009.6533008614.
The cubic root of 64154546 is about 400.3217120174.
The spelling of 64154546 in words is "sixty-four million, one hundred fifty-four thousand, five hundred forty-six".