140273749 has 32 divisors (see below), whose sum is σ = 187183872. Its totient is φ = 101760000.

The previous prime is 140273741. The next prime is 140273753. The reversal of 140273749 is 947372041.

It is a cyclic number.

It is not a de Polignac number, because 140273749 - 2³ = 140273741 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140273741) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 131679 + ... + 132739.

It is an arithmetic number, because the mean of its divisors is an integer number (5849496).

Almost surely, 2^140273749 is an apocalyptic number.

It is an amenable number.

140273749 is a deficient number, since it is larger than the sum of its proper divisors (46910123).

140273749 is a wasteful number, since it uses less digits than its factorization.

140273749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1197.

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 140273749 is about 11843.7219234496. The cubic root of 140273749 is about 519.5876279475.

The spelling of 140273749 in words is "one hundred forty million, two hundred seventy-three thousand, seven hundred forty-nine".