1464145657 has 8 divisors (see below), whose sum is σ = 1613441984. Its totient is φ = 1320087888.

The previous prime is 1464145637. The next prime is 1464145673. The reversal of 1464145657 is 7565414641.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1464145657 - 2²³ = 1455757049 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1464145637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1309053 + ... + 1310170.

It is an arithmetic number, because the mean of its divisors is an integer number (201680248).

Almost surely, 2^1464145657 is an apocalyptic number.

It is an amenable number.

1464145657 is a deficient number, since it is larger than the sum of its proper divisors (149296327).

1464145657 is a wasteful number, since it uses less digits than its factorization.

1464145657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2619279.

The product of its digits is 403200, while the sum is 43.

The square root of 1464145657 is about 38264.1562954157. The cubic root of 1464145657 is about 1135.5199302385.

The spelling of 1464145657 in words is "one billion, four hundred sixty-four million, one hundred forty-five thousand, six hundred fifty-seven".