140987465 has 12 divisors (see below), whose sum is σ = 170290764. Its totient is φ = 112057344.

The previous prime is 140987461. The next prime is 140987489. The reversal of 140987465 is 564789041.

It can be written as a sum of positive squares in 6 ways, for example, as 10936249 + 130051216 = 3307^2 + 11404^2 .

It is not a de Polignac number, because 140987465 - 2² = 140987461 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140987461) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 185867 + ... + 186623.

It is an arithmetic number, because the mean of its divisors is an integer number (14190897).

Almost surely, 2^140987465 is an apocalyptic number.

It is an amenable number.

140987465 is a deficient number, since it is larger than the sum of its proper divisors (29303299).

140987465 is an frugal number, since it uses more digits than its factorization.

140987465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1148 (or 955 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 140987465 is about 11873.8142565900. The cubic root of 140987465 is about 520.4673621194.

The spelling of 140987465 in words is "one hundred forty million, nine hundred eighty-seven thousand, four hundred sixty-five".