140306157249 has 8 divisors (see below), whose sum is σ = 187077035040. Its totient is φ = 93536358816.

The previous prime is 140306157209. The next prime is 140306157281. The reversal of 140306157249 is 942751603041.

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

It is not a de Polignac number, because 140306157249 - 2⁹ = 140306156737 is a prime.

It is a super-2 number, since 2×140306157249² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 140306157249.

It is not an unprimeable number, because it can be changed into a prime (140306157209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109762 + ... + 540980.

It is an arithmetic number, because the mean of its divisors is an integer number (23384629380).

Almost surely, 2^140306157249 is an apocalyptic number.

It is an amenable number.

140306157249 is a deficient number, since it is larger than the sum of its proper divisors (46770877791).

140306157249 is a wasteful number, since it uses less digits than its factorization.

140306157249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539679.

The product of its (nonzero) digits is 181440, while the sum is 42.

The spelling of 140306157249 in words is "one hundred forty billion, three hundred six million, one hundred fifty-seven thousand, two hundred forty-nine".