1540230151 has 4 divisors (see below), whose sum is σ = 1540489600. Its totient is φ = 1539970704.

The previous prime is 1540230143. The next prime is 1540230161. The reversal of 1540230151 is 1510320451.

It is a happy number.

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 1540230151 - 2³ = 1540230143 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 (1540230101) 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, 120606 + ... + 132763.

It is an arithmetic number, because the mean of its divisors is an integer number (385122400).

Almost surely, 2^1540230151 is an apocalyptic number.

1540230151 is a deficient number, since it is larger than the sum of its proper divisors (259449).

1540230151 is an equidigital number, since it uses as much as digits as its factorization.

1540230151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259448.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 1540230151 is about 39245.7660264136. The cubic root of 1540230151 is about 1154.8578752302.

The spelling of 1540230151 in words is "one billion, five hundred forty million, two hundred thirty thousand, one hundred fifty-one".