140757149 has 24 divisors (see below), whose sum is σ = 162260280. Its totient is φ = 121347072.

The previous prime is 140757137. The next prime is 140757163. The reversal of 140757149 is 941757041.

140757149 = 77² + 78² + ... + 750².

It can be written as a sum of positive squares in 4 ways, for example, as 1092025 + 139665124 = 1045^2 + 11818^2 .

It is a de Polignac number, because none of the positive numbers 2^k-140757149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140757049) 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 23 ways as a sum of consecutive naturals, for example, 417509 + ... + 417845.

It is an arithmetic number, because the mean of its divisors is an integer number (6760845).

Almost surely, 2^140757149 is an apocalyptic number.

140757149 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

140757149 is a deficient number, since it is larger than the sum of its proper divisors (21503131).

140757149 is a wasteful number, since it uses less digits than its factorization.

140757149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477 (or 458 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 38.

The square root of 140757149 is about 11864.1118083066. Note that the first 3 decimals coincide. The cubic root of 140757149 is about 520.1837972076.

The spelling of 140757149 in words is "one hundred forty million, seven hundred fifty-seven thousand, one hundred forty-nine".