140540072 has 8 divisors (see below), whose sum is σ = 263512650. Its totient is φ = 70270032.

The previous prime is 140540069. The next prime is 140540117. The reversal of 140540072 is 270045041.

It can be written as a sum of positive squares in only one way, i.e., 125126596 + 15413476 = 11186^2 + 3926^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8783747 + ... + 8783762.

Almost surely, 2^140540072 is an apocalyptic number.

It is an amenable number.

140540072 is a deficient number, since it is larger than the sum of its proper divisors (122972578).

140540072 is a wasteful number, since it uses less digits than its factorization.

140540072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17567515 (or 17567511 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 140540072 is about 11854.9598059209. The cubic root of 140540072 is about 519.9162488392.

The spelling of 140540072 in words is "one hundred forty million, five hundred forty thousand, seventy-two".