140457213 has 32 divisors (see below), whose sum is σ = 237283200. Its totient is φ = 81347328.

The previous prime is 140457199. The next prime is 140457227. The reversal of 140457213 is 312754041.

It is an interprime number because it is at equal distance from previous prime (140457199) and next prime (140457227).

It is not a de Polignac number, because 140457213 - 2¹³ = 140449021 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140457013) 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 31 ways as a sum of consecutive naturals, for example, 5803 + ... + 17736.

It is an arithmetic number, because the mean of its divisors is an integer number (7415100).

Almost surely, 2^140457213 is an apocalyptic number.

140457213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

140457213 is a deficient number, since it is larger than the sum of its proper divisors (96825987).

140457213 is a wasteful number, since it uses less digits than its factorization.

140457213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23578 (or 23572 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 140457213 is about 11851.4645930366. The cubic root of 140457213 is about 519.8140521042.

The spelling of 140457213 in words is "one hundred forty million, four hundred fifty-seven thousand, two hundred thirteen".