140738547 has 4 divisors (see below), whose sum is σ = 187651400. Its totient is φ = 93825696.

The previous prime is 140738519. The next prime is 140738581. The reversal of 140738547 is 745837041.

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

It is not a de Polignac number, because 140738547 - 2⁶ = 140738483 is a prime.

It is a super-2 number, since 2×140738547² = 39614677223342418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140738747) 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, 23456422 + ... + 23456427.

It is an arithmetic number, because the mean of its divisors is an integer number (46912850).

Almost surely, 2^140738547 is an apocalyptic number.

140738547 is a deficient number, since it is larger than the sum of its proper divisors (46912853).

140738547 is an equidigital number, since it uses as much as digits as its factorization.

140738547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46912852.

The product of its (nonzero) digits is 94080, while the sum is 39.

The square root of 140738547 is about 11863.3278214842. The cubic root of 140738547 is about 520.1608809404.

The spelling of 140738547 in words is "one hundred forty million, seven hundred thirty-eight thousand, five hundred forty-seven".