140151553 has 4 divisors (see below), whose sum is σ = 148395780. Its totient is φ = 131907328.

The previous prime is 140151511. The next prime is 140151607. The reversal of 140151553 is 355151041.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 71791729 + 68359824 = 8473^2 + 8268^2 .

It is a cyclic number.

It is not a de Polignac number, because 140151553 - 2⁹ = 140151041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140151853) 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, 4122088 + ... + 4122121.

It is an arithmetic number, because the mean of its divisors is an integer number (37098945).

Almost surely, 2^140151553 is an apocalyptic number.

It is an amenable number.

140151553 is a deficient number, since it is larger than the sum of its proper divisors (8244227).

140151553 is an equidigital number, since it uses as much as digits as its factorization.

140151553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8244226.

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 140151553 is about 11838.5621170816. The cubic root of 140151553 is about 519.4367088209.

The spelling of 140151553 in words is "one hundred forty million, one hundred fifty-one thousand, five hundred fifty-three".