140264015 has 4 divisors (see below), whose sum is σ = 168316824. Its totient is φ = 112211208.

The previous prime is 140264011. The next prime is 140264083. The reversal of 140264015 is 510462041.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 140264015 - 2² = 140264011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140264011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14026397 + ... + 14026406.

It is an arithmetic number, because the mean of its divisors is an integer number (42079206).

Almost surely, 2^140264015 is an apocalyptic number.

140264015 is a deficient number, since it is larger than the sum of its proper divisors (28052809).

140264015 is an equidigital number, since it uses as much as digits as its factorization.

140264015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28052808.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 140264015 is about 11843.3109813092. The cubic root of 140264015 is about 519.5756091082.

The spelling of 140264015 in words is "one hundred forty million, two hundred sixty-four thousand, fifteen".