140506151 has 2 divisors, whose sum is σ = 140506152. Its totient is φ = 140506150.

The previous prime is 140506141. The next prime is 140506187. The reversal of 140506151 is 151605041.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140506151 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140506141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70253075 + 70253076.

It is an arithmetic number, because the mean of its divisors is an integer number (70253076).

Almost surely, 2^140506151 is an apocalyptic number.

140506151 is a deficient number, since it is larger than the sum of its proper divisors (1).

140506151 is an equidigital number, since it uses as much as digits as its factorization.

140506151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 140506151 is about 11853.5290525649. The cubic root of 140506151 is about 519.8744161720.

The spelling of 140506151 in words is "one hundred forty million, five hundred six thousand, one hundred fifty-one".