140451464 has 16 divisors (see below), whose sum is σ = 263638800. Its totient is φ = 70147792.

The previous prime is 140451461. The next prime is 140451469. The reversal of 140451464 is 464154041.

It is a super-2 number, since 2×140451464² = 39453227479486592, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (140451461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1694 + ... + 16845.

It is an arithmetic number, because the mean of its divisors is an integer number (16477425).

Almost surely, 2^140451464 is an apocalyptic number.

It is an amenable number.

140451464 is a deficient number, since it is larger than the sum of its proper divisors (123187336).

140451464 is a wasteful number, since it uses less digits than its factorization.

140451464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19492 (or 19488 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 140451464 is about 11851.2220466921. Note that the first 3 decimals coincide. The cubic root of 140451464 is about 519.8069599046.

The spelling of 140451464 in words is "one hundred forty million, four hundred fifty-one thousand, four hundred sixty-four".